diff --git a/clients/imodels-client-management/package.json b/clients/imodels-client-management/package.json
index 758a91a1..6a081ec9 100644
--- a/clients/imodels-client-management/package.json
+++ b/clients/imodels-client-management/package.json
@@ -33,7 +33,7 @@
     "extends": "./node_modules/@itwin/imodels-client-common-config/.eslintrc.json"
   },
   "dependencies": {
-    "axios": "^1.0.0"
+    "axios": "1.1.0"
   },
   "devDependencies": {
     "@itwin/imodels-client-common-config": "workspace:*",
diff --git a/clients/imodels-client-management/src/base/internal/AxiosRestClient.ts b/clients/imodels-client-management/src/base/internal/AxiosRestClient.ts
index 3ba397bf..445ef406 100644
--- a/clients/imodels-client-management/src/base/internal/AxiosRestClient.ts
+++ b/clients/imodels-client-management/src/base/internal/AxiosRestClient.ts
@@ -18,6 +18,8 @@ export class AxiosRestClient implements RestClient {
 
   constructor(parseErrorFunc: ParseErrorFunc) {
     this._parseErrorFunc = parseErrorFunc;
+    delete axios.defaults.headers.post["Content-Type"];
+    delete axios.defaults.headers.patch["Content-Type"];
   }
 
   public sendGetRequest<TResponse>(params: HttpGetRequestParams & { responseType: ContentType.Json }): Promise<TResponse>;
@@ -43,7 +45,7 @@ export class AxiosRestClient implements RestClient {
       headers: params.headers
     };
 
-    return this.executeRequest(async () => axios.post(params.url, params.body.content ?? {}, requestConfig));
+    return this.executeRequest(async () => axios.post(params.url, params.body.content, requestConfig));
   }
 
   public async sendPutRequest<TResponse>(params: HttpRequestWithBinaryBodyParams): Promise<TResponse> {
@@ -59,7 +61,7 @@ export class AxiosRestClient implements RestClient {
       headers: params.headers
     };
 
-    return this.executeRequest(async () => axios.patch(params.url, params.body.content ?? {}, requestConfig));
+    return this.executeRequest(async () => axios.patch(params.url, params.body.content, requestConfig));
   }
 
   public async sendDeleteRequest<TResponse>(params: HttpRequestParams): Promise<TResponse> {
diff --git a/clients/imodels-client-management/src/base/internal/OperationsBase.ts b/clients/imodels-client-management/src/base/internal/OperationsBase.ts
index 8faf9dcb..c89ab7c1 100644
--- a/clients/imodels-client-management/src/base/internal/OperationsBase.ts
+++ b/clients/imodels-client-management/src/base/internal/OperationsBase.ts
@@ -119,7 +119,7 @@ export class OperationsBase<TOptions extends OperationsBaseOptions> {
     }
   }
 
-  private async formHeaders(params: CommonRequestParams & { preferReturn?: PreferReturn, contentType?: ContentType}): Promise<Dictionary<string>> {
+  private async formHeaders(params: CommonRequestParams & { preferReturn?: PreferReturn, contentType?: ContentType, body?: object }): Promise<Dictionary<string>> {
     const headers: Dictionary<string> = {};
     const authorizationInfo = await params.authorization();
     headers[Constants.headers.authorization] = `${authorizationInfo.scheme} ${authorizationInfo.token}`;
@@ -128,7 +128,7 @@ export class OperationsBase<TOptions extends OperationsBaseOptions> {
     if (params.preferReturn)
       headers[Constants.headers.prefer] = `return=${params.preferReturn}`;
 
-    if (params.contentType)
+    if (params.contentType && params.body !== undefined)
       headers[Constants.headers.contentType] = params.contentType;
 
     this.addOrUpdateHeaders(headers, this._options.headers);
diff --git a/common/config/rush/pnpm-lock.yaml b/common/config/rush/pnpm-lock.yaml
index d19a3c64..043daee8 100644
--- a/common/config/rush/pnpm-lock.yaml
+++ b/common/config/rush/pnpm-lock.yaml
@@ -34,14 +34,14 @@ importers:
     specifiers:
       '@itwin/imodels-client-common-config': workspace:*
       '@types/node': ^18.11.18
-      axios: ^1.0.0
+      axios: 1.1.0
       cspell: ~5.21.0
       eslint: ~7.31.0
       rimraf: ~3.0.2
       sort-package-json: ~1.53.1
       typescript: ~4.4.0
     dependencies:
-      axios: 1.4.0
+      axios: 1.1.0
     devDependencies:
       '@itwin/imodels-client-common-config': link:../../utils/imodels-client-common-config
       '@types/node': 18.16.16
@@ -62,7 +62,7 @@ importers:
       '@itwin/imodels-client-common-config': workspace:*
       '@types/node': 14.14.31
       '@types/ws': ^7.0.0
-      axios: ^1.0.0
+      axios: 1.1.0
       cspell: ~5.21.0
       eslint: ~7.31.0
       rimraf: ~3.0.2
@@ -71,7 +71,7 @@ importers:
     dependencies:
       '@azure/abort-controller': 1.1.0
       '@itwin/imodels-client-authoring': link:../../clients/imodels-client-authoring
-      axios: 1.4.0
+      axios: 1.1.0
     devDependencies:
       '@itwin/core-backend': 4.0.0_acda798b3eb76717c9a14158b1be73d0
       '@itwin/core-bentley': 4.0.0
@@ -248,7 +248,7 @@ importers:
       '@types/node': ^18.11.18
       '@types/sinon': ^10.0.15
       '@types/sinon-chai': ^3.2.9
-      axios: ^1.0.0
+      axios: 1.1.0
       chai: ~4.3.4
       chai-as-promised: ~7.1.1
       cpx2: 4.2.0
@@ -272,7 +272,7 @@ importers:
       '@itwin/imodels-client-test-utils': link:../../utils/imodels-client-test-utils
       '@itwin/object-storage-azure': 1.6.0
       '@itwin/object-storage-core': 1.6.0
-      axios: 1.4.0
+      axios: 1.1.0
       chai: 4.3.7
       chai-as-promised: 7.1.1_chai@4.3.7
       dotenv: 10.0.0
@@ -365,7 +365,7 @@ importers:
       '@itwin/object-storage-core': ^1.6.0
       '@types/chai': ~4.2.21
       '@types/node': ^18.11.18
-      axios: ^1.0.0
+      axios: 1.1.0
       chai: ~4.3.4
       cpx2: 4.2.0
       cspell: ~5.21.0
@@ -381,7 +381,7 @@ importers:
       '@itwin/imodels-client-authoring': link:../../clients/imodels-client-authoring
       '@itwin/imodels-client-management': link:../../clients/imodels-client-management
       '@itwin/object-storage-core': 1.6.0
-      axios: 1.4.0
+      axios: 1.1.0
       chai: 4.3.7
       dotenv: 10.0.0
       inversify: 5.0.5
@@ -412,17 +412,17 @@ packages:
     resolution: {integrity: sha512-TrRLIoSQVzfAJX9H1JeFjzAoDGcoK1IYX1UImfceTZpsyYfWr09Ss1aHW1y5TrrR3iq6RZLBwJ3E24uwPhwahw==}
     engines: {node: '>=12.0.0'}
     dependencies:
-      tslib: 2.5.2
+      tslib: 2.5.3
 
   /@azure/core-auth/1.4.0:
     resolution: {integrity: sha512-HFrcTgmuSuukRf/EdPmqBrc5l6Q5Uu+2TbuhaKbgaCpP2TfAeiNaQPAadxO+CYBRHGUzIDteMAjFspFLDLnKVQ==}
     engines: {node: '>=12.0.0'}
     dependencies:
       '@azure/abort-controller': 1.1.0
-      tslib: 2.5.2
+      tslib: 2.5.3
 
-  /@azure/core-http/3.0.1:
-    resolution: {integrity: sha512-A3x+um3cAPgQe42Lu7Iv/x8/fNjhL/nIoEfqFxfn30EyxK6zC13n+OUxzZBRC0IzQqssqIbt4INf5YG7lYYFtw==}
+  /@azure/core-http/3.0.2:
+    resolution: {integrity: sha512-o1wR9JrmoM0xEAa0Ue7Sp8j+uJvmqYaGoHOCT5qaVYmvgmnZDC0OvQimPA/JR3u77Sz6D1y3Xmk1y69cDU9q9A==}
     engines: {node: '>=14.0.0'}
     dependencies:
       '@azure/abort-controller': 1.1.0
@@ -435,7 +435,7 @@ packages:
       form-data: 4.0.0
       node-fetch: 2.6.11
       process: 0.11.10
-      tslib: 2.5.2
+      tslib: 2.5.3
       tunnel: 0.0.6
       uuid: 8.3.2
       xml2js: 0.5.0
@@ -449,46 +449,46 @@ packages:
       '@azure/abort-controller': 1.1.0
       '@azure/core-util': 1.3.2
       '@azure/logger': 1.0.4
-      tslib: 2.5.2
+      tslib: 2.5.3
 
   /@azure/core-paging/1.5.0:
     resolution: {integrity: sha512-zqWdVIt+2Z+3wqxEOGzR5hXFZ8MGKK52x4vFLw8n58pR6ZfKRx3EXYTxTaYxYHc/PexPUTyimcTWFJbji9Z6Iw==}
     engines: {node: '>=14.0.0'}
     dependencies:
-      tslib: 2.5.2
+      tslib: 2.5.3
 
   /@azure/core-tracing/1.0.0-preview.13:
     resolution: {integrity: sha512-KxDlhXyMlh2Jhj2ykX6vNEU0Vou4nHr025KoSEiz7cS3BNiHNaZcdECk/DmLkEB0as5T7b/TpRcehJ5yV6NeXQ==}
     engines: {node: '>=12.0.0'}
     dependencies:
       '@opentelemetry/api': 1.4.1
-      tslib: 2.5.2
+      tslib: 2.5.3
 
   /@azure/core-util/1.3.2:
     resolution: {integrity: sha512-2bECOUh88RvL1pMZTcc6OzfobBeWDBf5oBbhjIhT1MV9otMVWCzpOJkkiKtrnO88y5GGBelgY8At73KGAdbkeQ==}
     engines: {node: '>=14.0.0'}
     dependencies:
       '@azure/abort-controller': 1.1.0
-      tslib: 2.5.2
+      tslib: 2.5.3
 
   /@azure/logger/1.0.4:
     resolution: {integrity: sha512-ustrPY8MryhloQj7OWGe+HrYx+aoiOxzbXTtgblbV3xwCqpzUK36phH3XNHQKj3EPonyFUuDTfR3qFhTEAuZEg==}
     engines: {node: '>=14.0.0'}
     dependencies:
-      tslib: 2.5.2
+      tslib: 2.5.3
 
   /@azure/storage-blob/12.13.0:
     resolution: {integrity: sha512-t3Q2lvBMJucgTjQcP5+hvEJMAsJSk0qmAnjDLie2td017IiduZbbC9BOcFfmwzR6y6cJdZOuewLCNFmEx9IrXA==}
     engines: {node: '>=14.0.0'}
     dependencies:
       '@azure/abort-controller': 1.1.0
-      '@azure/core-http': 3.0.1
+      '@azure/core-http': 3.0.2
       '@azure/core-lro': 2.5.3
       '@azure/core-paging': 1.5.0
       '@azure/core-tracing': 1.0.0-preview.13
       '@azure/logger': 1.0.4
       events: 3.3.0
-      tslib: 2.5.2
+      tslib: 2.5.3
     transitivePeerDependencies:
       - encoding
 
@@ -497,13 +497,13 @@ packages:
     engines: {node: '>=14.0.0'}
     dependencies:
       '@azure/abort-controller': 1.1.0
-      '@azure/core-http': 3.0.1
+      '@azure/core-http': 3.0.2
       '@azure/core-lro': 2.5.3
       '@azure/core-paging': 1.5.0
       '@azure/core-tracing': 1.0.0-preview.13
       '@azure/logger': 1.0.4
       events: 3.3.0
-      tslib: 2.5.2
+      tslib: 2.5.3
     transitivePeerDependencies:
       - encoding
     dev: false
@@ -536,10 +536,10 @@ packages:
       '@babel/helper-compilation-targets': 7.22.1_@babel+core@7.22.1
       '@babel/helper-module-transforms': 7.22.1
       '@babel/helpers': 7.22.3
-      '@babel/parser': 7.22.3
+      '@babel/parser': 7.22.4
       '@babel/template': 7.21.9
-      '@babel/traverse': 7.22.1
-      '@babel/types': 7.22.3
+      '@babel/traverse': 7.22.4
+      '@babel/types': 7.22.4
       convert-source-map: 1.9.0
       debug: 4.3.4
       gensync: 1.0.0-beta.2
@@ -553,7 +553,7 @@ packages:
     resolution: {integrity: sha512-C17MW4wlk//ES/CJDL51kPNwl+qiBQyN7b9SKyVp11BLGFeSPoVaHrv+MNt8jwQFhQWowW88z1eeBx3pFz9v8A==}
     engines: {node: '>=6.9.0'}
     dependencies:
-      '@babel/types': 7.22.3
+      '@babel/types': 7.22.4
       '@jridgewell/gen-mapping': 0.3.3
       '@jridgewell/trace-mapping': 0.3.18
       jsesc: 2.5.2
@@ -583,21 +583,21 @@ packages:
     engines: {node: '>=6.9.0'}
     dependencies:
       '@babel/template': 7.21.9
-      '@babel/types': 7.22.3
+      '@babel/types': 7.22.4
     dev: true
 
   /@babel/helper-hoist-variables/7.18.6:
     resolution: {integrity: sha512-UlJQPkFqFULIcyW5sbzgbkxn2FKRgwWiRexcuaR8RNJRy8+LLveqPjwZV/bwrLZCN0eUHD/x8D0heK1ozuoo6Q==}
     engines: {node: '>=6.9.0'}
     dependencies:
-      '@babel/types': 7.22.3
+      '@babel/types': 7.22.4
     dev: true
 
   /@babel/helper-module-imports/7.21.4:
     resolution: {integrity: sha512-orajc5T2PsRYUN3ZryCEFeMDYwyw09c/pZeaQEZPH0MpKzSvn3e0uXsDBu3k03VI+9DBiRo+l22BfKTpKwa/Wg==}
     engines: {node: '>=6.9.0'}
     dependencies:
-      '@babel/types': 7.22.3
+      '@babel/types': 7.22.4
     dev: true
 
   /@babel/helper-module-transforms/7.22.1:
@@ -610,8 +610,8 @@ packages:
       '@babel/helper-split-export-declaration': 7.18.6
       '@babel/helper-validator-identifier': 7.19.1
       '@babel/template': 7.21.9
-      '@babel/traverse': 7.22.1
-      '@babel/types': 7.22.3
+      '@babel/traverse': 7.22.4
+      '@babel/types': 7.22.4
     transitivePeerDependencies:
       - supports-color
     dev: true
@@ -620,14 +620,14 @@ packages:
     resolution: {integrity: sha512-ENPDAMC1wAjR0uaCUwliBdiSl1KBJAVnMTzXqi64c2MG8MPR6ii4qf7bSXDqSFbr4W6W028/rf5ivoHop5/mkg==}
     engines: {node: '>=6.9.0'}
     dependencies:
-      '@babel/types': 7.22.3
+      '@babel/types': 7.22.4
     dev: true
 
   /@babel/helper-split-export-declaration/7.18.6:
     resolution: {integrity: sha512-bde1etTx6ZyTmobl9LLMMQsaizFVZrquTEHOqKeQESMKo4PlObf+8+JA25ZsIpZhT/WEd39+vOdLXAFG/nELpA==}
     engines: {node: '>=6.9.0'}
     dependencies:
-      '@babel/types': 7.22.3
+      '@babel/types': 7.22.4
     dev: true
 
   /@babel/helper-string-parser/7.21.5:
@@ -650,8 +650,8 @@ packages:
     engines: {node: '>=6.9.0'}
     dependencies:
       '@babel/template': 7.21.9
-      '@babel/traverse': 7.22.1
-      '@babel/types': 7.22.3
+      '@babel/traverse': 7.22.4
+      '@babel/types': 7.22.4
     transitivePeerDependencies:
       - supports-color
     dev: true
@@ -665,8 +665,8 @@ packages:
       js-tokens: 4.0.0
     dev: true
 
-  /@babel/parser/7.22.3:
-    resolution: {integrity: sha512-vrukxyW/ep8UD1UDzOYpTKQ6abgjFoeG6L+4ar9+c5TN9QnlqiOi6QK7LSR5ewm/ERyGkT/Ai6VboNrxhbr9Uw==}
+  /@babel/parser/7.22.4:
+    resolution: {integrity: sha512-VLLsx06XkEYqBtE5YGPwfSGwfrjnyPP5oiGty3S8pQLFDFLaS8VwWSIxkTXpcvr5zeYLE6+MBNl2npl/YnfofA==}
     engines: {node: '>=6.0.0'}
     hasBin: true
     dev: true
@@ -690,12 +690,12 @@ packages:
     engines: {node: '>=6.9.0'}
     dependencies:
       '@babel/code-frame': 7.21.4
-      '@babel/parser': 7.22.3
-      '@babel/types': 7.22.3
+      '@babel/parser': 7.22.4
+      '@babel/types': 7.22.4
     dev: true
 
-  /@babel/traverse/7.22.1:
-    resolution: {integrity: sha512-lAWkdCoUFnmwLBhIRLciFntGYsIIoC6vIbN8zrLPqBnJmPu7Z6nzqnKd7FsxQUNAvZfVZ0x6KdNvNp8zWIOHSQ==}
+  /@babel/traverse/7.22.4:
+    resolution: {integrity: sha512-Tn1pDsjIcI+JcLKq1AVlZEr4226gpuAQTsLMorsYg9tuS/kG7nuwwJ4AB8jfQuEgb/COBwR/DqJxmoiYFu5/rQ==}
     engines: {node: '>=6.9.0'}
     dependencies:
       '@babel/code-frame': 7.21.4
@@ -704,16 +704,16 @@ packages:
       '@babel/helper-function-name': 7.21.0
       '@babel/helper-hoist-variables': 7.18.6
       '@babel/helper-split-export-declaration': 7.18.6
-      '@babel/parser': 7.22.3
-      '@babel/types': 7.22.3
+      '@babel/parser': 7.22.4
+      '@babel/types': 7.22.4
       debug: 4.3.4
       globals: 11.12.0
     transitivePeerDependencies:
       - supports-color
     dev: true
 
-  /@babel/types/7.22.3:
-    resolution: {integrity: sha512-P3na3xIQHTKY4L0YOG7pM8M8uoUIB910WQaSiiMCZUC2Cy8XFEQONGABFnHWBa2gpGKODTAJcNhi5Zk0sLRrzg==}
+  /@babel/types/7.22.4:
+    resolution: {integrity: sha512-Tx9x3UBHTTsMSW85WB2kphxYQVvrZ/t1FxD88IpSgIjiUJlCm9z+xWIDwyo1vffTwSqteqyznB8ZE9vYYk16zA==}
     engines: {node: '>=6.9.0'}
     dependencies:
       '@babel/helper-string-parser': 7.21.5
@@ -2006,8 +2006,8 @@ packages:
     transitivePeerDependencies:
       - debug
 
-  /axios/1.4.0:
-    resolution: {integrity: sha512-S4XCWMEmzvo64T9GfvQDOXgYRDJ/wsSZc7Jvdgx5u1sd0JwsuPLqb3SYmusag+edF6ziyMensPVqLTSc1PiSEA==}
+  /axios/1.1.0:
+    resolution: {integrity: sha512-hsJgcqz4JY7f+HZ4cWTrPZ6tZNCNFPTRx1MjRqu/hbpgpHdSCUpLVuplc+jE/h7dOvyANtw/ERA3HC2Rz/QoMg==}
     dependencies:
       follow-redirects: 1.15.2
       form-data: 4.0.0
@@ -2081,8 +2081,8 @@ packages:
     engines: {node: ^6 || ^7 || ^8 || ^9 || ^10 || ^11 || ^12 || >=13.7}
     hasBin: true
     dependencies:
-      caniuse-lite: 1.0.30001489
-      electron-to-chromium: 1.4.411
+      caniuse-lite: 1.0.30001495
+      electron-to-chromium: 1.4.423
       node-releases: 2.0.12
       update-browserslist-db: 1.0.11_browserslist@4.21.7
     dev: true
@@ -2134,8 +2134,8 @@ packages:
     engines: {node: '>=10'}
     dev: false
 
-  /caniuse-lite/1.0.30001489:
-    resolution: {integrity: sha512-x1mgZEXK8jHIfAxm+xgdpHpk50IN3z3q3zP261/WS+uvePxW8izXuCu6AHz0lkuYTlATDehiZ/tNyYBdSQsOUQ==}
+  /caniuse-lite/1.0.30001495:
+    resolution: {integrity: sha512-F6x5IEuigtUfU5ZMQK2jsy5JqUUlEFRVZq8bO2a+ysq5K7jD6PPc9YXZj78xDNS3uNchesp1Jw47YXEqr+Viyg==}
     dev: true
 
   /caseless/0.12.0:
@@ -2511,7 +2511,7 @@ packages:
       cli-table3: 0.6.3
       commander: 5.1.0
       common-tags: 1.8.2
-      dayjs: 1.11.7
+      dayjs: 1.11.8
       debug: 4.3.4_supports-color@8.1.1
       enquirer: 2.3.6
       eventemitter2: 6.4.7
@@ -2550,8 +2550,8 @@ packages:
       assert-plus: 1.0.0
     dev: false
 
-  /dayjs/1.11.7:
-    resolution: {integrity: sha512-+Yw9U6YO5TQohxLcIkrXBeY73WP3ejHWVvx8XCk3gxvQDCTEmS48ZrSZCKciI7Bhl/uCMyxYtE9UqRILmFphkQ==}
+  /dayjs/1.11.8:
+    resolution: {integrity: sha512-LcgxzFoWMEPO7ggRv1Y2N31hUf2R0Vj7fuy/m+Bg1K8rr+KAs1AEy4y9jd5DXe8pbHgX+srkHNS7TH6Q6ZhYeQ==}
     dev: false
 
   /debounce/1.2.1:
@@ -2732,8 +2732,8 @@ packages:
       safer-buffer: 2.1.2
     dev: false
 
-  /electron-to-chromium/1.4.411:
-    resolution: {integrity: sha512-5VXLW4Qw89vM2WTICHua/y8v7fKGDRVa2VPOtBB9IpLvW316B+xd8yD1wTmLPY2ot/00P/qt87xdolj4aG/Lzg==}
+  /electron-to-chromium/1.4.423:
+    resolution: {integrity: sha512-y4A7YfQcDGPAeSWM1IuoWzXpg9RY1nwHzHSwRtCSQFp9FgAVDgdWlFf0RbdWfLWQ2WUI+bddUgk5RgTjqRE6FQ==}
     dev: true
 
   /emoji-regex/8.0.0:
@@ -5151,7 +5151,7 @@ packages:
   /rxjs/7.8.1:
     resolution: {integrity: sha512-AA3TVj+0A2iuIoQkWEK/tqFjBq2j+6PO6Y0zJcvzLAFhEFIO3HL0vls9hWLncZbAAbK0mar7oZ4V079I/qPMxg==}
     dependencies:
-      tslib: 2.5.2
+      tslib: 2.5.3
     dev: false
 
   /safe-buffer/5.2.1:
@@ -5574,8 +5574,8 @@ packages:
     resolution: {integrity: sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==}
     dev: true
 
-  /tslib/2.5.2:
-    resolution: {integrity: sha512-5svOrSA2w3iGFDs1HibEVBGbDrAY82bFQ3HZ3ixB+88nsbsWQoKqDRb5UBYAUPEzbBn6dAp5gRNXglySbx1MlA==}
+  /tslib/2.5.3:
+    resolution: {integrity: sha512-mSxlJJwl3BMEQCUNnxXBU9jP4JBktcEGhURcPR6VQVlnP0FdDEsIaz0C35dXNGLyRfrATNofF0F5p2KPxQgB+w==}
 
   /tsutils/3.21.0_typescript@4.4.4:
     resolution: {integrity: sha512-mHKK3iUXL+3UF6xL5k0PEhKRUBKPBCv/+RkEOpjRWxxx27KKRBmmA60A9pgOUvMi8GKhRMPEmjBRPzs2W7O1OA==}
diff --git a/itwin-platform-access/imodels-access-backend/package.json b/itwin-platform-access/imodels-access-backend/package.json
index 4edcd08e..5b5363c1 100644
--- a/itwin-platform-access/imodels-access-backend/package.json
+++ b/itwin-platform-access/imodels-access-backend/package.json
@@ -33,7 +33,7 @@
   "dependencies": {
     "@azure/abort-controller": "^1.1.0",
     "@itwin/imodels-client-authoring": "workspace:*",
-    "axios": "^1.0.0"
+    "axios": "1.1.0"
   },
   "devDependencies": {
     "@itwin/core-backend": "^4.0.0",
diff --git a/itwin-platform-access/imodels-access-backend/src/BackendIModelsAccess.ts b/itwin-platform-access/imodels-access-backend/src/BackendIModelsAccess.ts
index ef287fbb..2aceeb3d 100644
--- a/itwin-platform-access/imodels-access-backend/src/BackendIModelsAccess.ts
+++ b/itwin-platform-access/imodels-access-backend/src/BackendIModelsAccess.ts
@@ -247,7 +247,7 @@ export class BackendIModelsAccess implements BackendHubAccess {
     const contentRangeHeaderName = "content-range";
 
     const response: AxiosResponse = await axios.get(downloadUrl, { headers: { Range: emptyRangeHeaderValue } });
-    const rangeHeaderValue: string = response.headers[contentRangeHeaderName];
+    const rangeHeaderValue: string = response.headers[contentRangeHeaderName]!;
     const rangeTotalBytesString: string = rangeHeaderValue.split("/")[1];
     const rangeTotalBytes: number = parseInt(rangeTotalBytesString, 10);
 
diff --git a/tests/imodels-clients-tests-browser/src/ThumbnailOperations.test.ts b/tests/imodels-clients-tests-browser/src/ThumbnailOperations.test.ts
index 6fb917d3..0d0302bc 100644
--- a/tests/imodels-clients-tests-browser/src/ThumbnailOperations.test.ts
+++ b/tests/imodels-clients-tests-browser/src/ThumbnailOperations.test.ts
@@ -73,7 +73,10 @@ describe(`[Management] ${ThumbnailOperations.name}`, () => {
     // Arrange
     const iModelScopedOperationParams: IModelScopedOperationParams = {
       authorization,
-      iModelId: testIModelForWriteId
+      iModelId: testIModelForWriteId,
+      headers: {
+        "Accept-Encoding": "gzip,deflate,compress"
+      }
     };
     const initialThumbnail: Thumbnail = await iModelsClient.thumbnails.download(iModelScopedOperationParams);
 
diff --git a/tests/imodels-clients-tests/package.json b/tests/imodels-clients-tests/package.json
index 032d3822..0d52c2c6 100644
--- a/tests/imodels-clients-tests/package.json
+++ b/tests/imodels-clients-tests/package.json
@@ -42,7 +42,7 @@
     "@itwin/imodels-client-test-utils": "workspace:*",
     "@itwin/object-storage-azure": "^1.6.0",
     "@itwin/object-storage-core": "^1.6.0",
-    "axios": "^1.0.0",
+    "axios": "1.1.0",
     "chai": "~4.3.4",
     "chai-as-promised": "~7.1.1",
     "dotenv": "~10.0.0",
diff --git a/tests/imodels-clients-tests/src/integration/management/ThumbnailOperations.test.ts b/tests/imodels-clients-tests/src/integration/management/ThumbnailOperations.test.ts
index 11505150..7a36cea0 100644
--- a/tests/imodels-clients-tests/src/integration/management/ThumbnailOperations.test.ts
+++ b/tests/imodels-clients-tests/src/integration/management/ThumbnailOperations.test.ts
@@ -112,7 +112,10 @@ describe("[Management] ThumbnailOperations", () => {
       // Arrange
       const iModelScopedOperationParams: IModelScopedOperationParams = {
         authorization,
-        iModelId: testIModelForWrite.id
+        iModelId: testIModelForWrite.id,
+        headers: {
+          "Accept-Encoding": "gzip,deflate,compress"
+        }
       };
       const initialThumbnail: Thumbnail = await iModelsClient.thumbnails.download(iModelScopedOperationParams);
 
diff --git a/tests/imodels-clients-tests/src/unit/management/OperationsBase.test.ts b/tests/imodels-clients-tests/src/unit/management/OperationsBase.test.ts
index 8c3903de..fb0f6282 100644
--- a/tests/imodels-clients-tests/src/unit/management/OperationsBase.test.ts
+++ b/tests/imodels-clients-tests/src/unit/management/OperationsBase.test.ts
@@ -15,82 +15,6 @@ describe("[Management] OperationsBase", () => {
   let restClient: sinon.SinonStubbedInstance<AxiosRestClient>;
   let requiredArgs: {url: string, authorization: () => Promise<Authorization>};
 
-  const operationsTestCases: {
-    caseName: string;
-    headersPassedToConstructor: Record<string, string | (() => string | undefined)>;
-    headersPassedToOperation: Record<string, string | (() => string | undefined)>;
-    expectedHeaders: Record<string, string>;
-  }[] = [
-    {
-      caseName: "Adds constructor headers",
-      headersPassedToConstructor: {
-        "header-specified-in-constructor": "constructor"
-      },
-      headersPassedToOperation: {},
-      expectedHeaders: {
-        "header-specified-in-constructor": "constructor"
-      }
-    },
-    {
-      caseName: "Adds operation headers",
-      headersPassedToConstructor: {},
-      headersPassedToOperation: {
-        "header-specified-in-operation": "operation"
-      },
-      expectedHeaders: {
-        "header-specified-in-operation": "operation"
-      }
-    },
-    {
-      caseName: "Adds constructor and operation headers",
-      headersPassedToConstructor: {
-        "header-specified-in-constructor": "constructor"
-      },
-      headersPassedToOperation: {
-        "header-specified-in-operation": "operation"
-      },
-      expectedHeaders: {
-        "header-specified-in-constructor": "constructor",
-        "header-specified-in-operation": "operation"
-      }
-    },
-    {
-      caseName: "Replaces constructor headers",
-      headersPassedToConstructor: {
-        "header-specified-in-constructor": "constructor"
-      },
-      headersPassedToOperation: {
-        "header-specified-in-constructor": "operation"
-      },
-      expectedHeaders: {
-        "header-specified-in-constructor": "operation"
-      }
-    },
-    {
-      caseName: "Removes constructor headers",
-      headersPassedToConstructor: {
-        "header-specified-in-constructor": "constructor"
-      },
-      headersPassedToOperation: {
-        "header-specified-in-constructor": () => undefined
-      },
-      expectedHeaders: {}
-    },
-    {
-      caseName: "Works with function headers",
-      headersPassedToConstructor: {
-        "header-specified-in-constructor": () => "constructor"
-      },
-      headersPassedToOperation: {
-        "header-specified-in-operation": () => "operation"
-      },
-      expectedHeaders: {
-        "header-specified-in-constructor": "constructor",
-        "header-specified-in-operation": "operation"
-      }
-    }
-  ];
-
   before( async () => {
     restClient = createStub(AxiosRestClient);
     const authorizationCallback = async () => {
@@ -103,111 +27,278 @@ describe("[Management] OperationsBase", () => {
     requiredArgs = {url: "url", authorization: authorizationCallback};
   });
 
-  for( const testCase of operationsTestCases) {
-    const { caseName, headersPassedToConstructor, headersPassedToOperation, expectedHeaders } = testCase;
+  describe("OperationsBase headers", () => {
+    const operationsTestCases: {
+      caseName: string;
+      headersPassedToConstructor: Record<string, string | (() => string | undefined)>;
+      headersPassedToOperation: Record<string, string | (() => string | undefined)>;
+      expectedHeaders: Record<string, string>;
+    }[] = [
+      {
+        caseName: "Adds constructor headers",
+        headersPassedToConstructor: {
+          "header-specified-in-constructor": "constructor"
+        },
+        headersPassedToOperation: {},
+        expectedHeaders: {
+          "header-specified-in-constructor": "constructor"
+        }
+      },
+      {
+        caseName: "Adds operation headers",
+        headersPassedToConstructor: {},
+        headersPassedToOperation: {
+          "header-specified-in-operation": "operation"
+        },
+        expectedHeaders: {
+          "header-specified-in-operation": "operation"
+        }
+      },
+      {
+        caseName: "Adds constructor and operation headers",
+        headersPassedToConstructor: {
+          "header-specified-in-constructor": "constructor"
+        },
+        headersPassedToOperation: {
+          "header-specified-in-operation": "operation"
+        },
+        expectedHeaders: {
+          "header-specified-in-constructor": "constructor",
+          "header-specified-in-operation": "operation"
+        }
+      },
+      {
+        caseName: "Replaces constructor headers",
+        headersPassedToConstructor: {
+          "header-specified-in-constructor": "constructor"
+        },
+        headersPassedToOperation: {
+          "header-specified-in-constructor": "operation"
+        },
+        expectedHeaders: {
+          "header-specified-in-constructor": "operation"
+        }
+      },
+      {
+        caseName: "Removes constructor headers",
+        headersPassedToConstructor: {
+          "header-specified-in-constructor": "constructor"
+        },
+        headersPassedToOperation: {
+          "header-specified-in-constructor": () => undefined
+        },
+        expectedHeaders: {}
+      },
+      {
+        caseName: "Works with function headers",
+        headersPassedToConstructor: {
+          "header-specified-in-constructor": () => "constructor"
+        },
+        headersPassedToOperation: {
+          "header-specified-in-operation": () => "operation"
+        },
+        expectedHeaders: {
+          "header-specified-in-constructor": "constructor",
+          "header-specified-in-operation": "operation"
+        }
+      }
+    ];
+
+    for( const testCase of operationsTestCases) {
+      const { caseName, headersPassedToConstructor, headersPassedToOperation, expectedHeaders } = testCase;
 
-    it(`${caseName} works with Get Request`, async () => {
+      it(`${caseName} works with Get Request`, async () => {
       // Arrange
-      const iModelsOperationsWrapper = new TestOperationsWrapper(
-        {
-          restClient,
-          api: {version: "version"},
-          headers: headersPassedToConstructor
+        const iModelsOperationsWrapper = new TestOperationsWrapper(
+          {
+            restClient,
+            api: {version: "version"},
+            headers: headersPassedToConstructor
+          });
+
+        // Act
+        await iModelsOperationsWrapper.sendGetRequest({
+          ...requiredArgs,
+          headers: headersPassedToOperation
         });
 
-      // Act
-      await iModelsOperationsWrapper.sendGetRequest({
-        ...requiredArgs,
-        headers: headersPassedToOperation
+        // Assert
+        const callHeaders = restClient.sendGetRequest.lastCall.args[0].headers;
+        expect(callHeaders).to.include(expectedHeaders);
       });
 
-      // Assert
-      const callHeaders = restClient.sendGetRequest.lastCall.args[0].headers;
-      expect(callHeaders).to.include(expectedHeaders);
-    });
+      it(`${caseName} works with Post Request`, async () => {
+      // Arrange
+        const iModelsOperationsWrapper = new TestOperationsWrapper(
+          {
+            restClient,
+            api: {version: "version"},
+            headers: headersPassedToConstructor
+          });
+
+        // Act
+        await iModelsOperationsWrapper.sendPostRequest({
+          ...requiredArgs,
+          headers: headersPassedToOperation,
+          body: {}
+        });
+
+        // Assert
+        const callHeaders = restClient.sendPostRequest.lastCall.args[0].headers;
+        expect(callHeaders).to.include(expectedHeaders);
+      });
+
+      it(`${caseName} works with Put Request`, async () => {
+      // Arrange
+        const iModelsOperationsWrapper = new TestOperationsWrapper(
+          {
+            restClient,
+            api: {version: "version"},
+            headers: headersPassedToConstructor
+          });
+
+        // Act
+        await iModelsOperationsWrapper.sendPutRequest({
+          ...requiredArgs,
+          headers: headersPassedToOperation,
+          body: new Uint8Array(),
+          contentType: ContentType.Png
+        });
+
+        // Assert
+        const callHeaders = restClient.sendPutRequest.lastCall.args[0].headers;
+        expect(callHeaders).to.include(expectedHeaders);
+      });
+
+      it(`${caseName} works with Delete Request`, async () => {
+      // Arrange
+        const iModelsOperationsWrapper = new TestOperationsWrapper(
+          {
+            restClient,
+            api: {version: "version"},
+            headers: headersPassedToConstructor
+          });
+
+        // Act
+        await iModelsOperationsWrapper.sendDeleteRequest({
+          ...requiredArgs,
+          headers: headersPassedToOperation
+        });
 
-    it(`${caseName} works with Post Request`, async () => {
+        // Assert
+        const callHeaders = restClient.sendDeleteRequest.lastCall.args[0].headers;
+        expect(callHeaders).to.include(expectedHeaders);
+      });
+
+      it(`${caseName} works with Patch Request`, async () => {
+      // Arrange
+        const iModelsOperationsWrapper = new TestOperationsWrapper(
+          {
+            restClient,
+            api: {version: "version"},
+            headers: headersPassedToConstructor
+          });
+
+        // Act
+        await iModelsOperationsWrapper.sendPatchRequest({
+          ...requiredArgs,
+          headers: headersPassedToOperation,
+          body: {}
+        });
+
+        // Assert
+        const callHeaders = restClient.sendPatchRequest.lastCall.args[0].headers;
+        expect(callHeaders).to.include(expectedHeaders);
+      });
+    }
+  });
+
+  describe("OperationsBase Content-Type", () => {
+
+    it("Adds Content-Type header for Post Request", async () => {
       // Arrange
       const iModelsOperationsWrapper = new TestOperationsWrapper(
         {
           restClient,
           api: {version: "version"},
-          headers: headersPassedToConstructor
+          headers: {}
         });
 
       // Act
       await iModelsOperationsWrapper.sendPostRequest({
         ...requiredArgs,
-        headers: headersPassedToOperation,
-        body: {}
+        body: {
+          contentType: ContentType.Json,
+          content: "serialized content"
+        }
       });
 
       // Assert
       const callHeaders = restClient.sendPostRequest.lastCall.args[0].headers;
-      expect(callHeaders).to.include(expectedHeaders);
+      expect(callHeaders).to.include({"Content-Type": ContentType.Json});
     });
 
-    it(`${caseName} works with Put Request`, async () => {
+    it("Does not add Content-Type header for Post Request", async () => {
       // Arrange
       const iModelsOperationsWrapper = new TestOperationsWrapper(
         {
           restClient,
           api: {version: "version"},
-          headers: headersPassedToConstructor
+          headers: {}
         });
 
       // Act
-      await iModelsOperationsWrapper.sendPutRequest({
+      await iModelsOperationsWrapper.sendPostRequest({
         ...requiredArgs,
-        headers: headersPassedToOperation,
-        body: new Uint8Array(),
-        contentType: ContentType.Png
+        body: undefined
       });
 
       // Assert
-      const callHeaders = restClient.sendPutRequest.lastCall.args[0].headers;
-      expect(callHeaders).to.include(expectedHeaders);
+      const callHeaders = restClient.sendPostRequest.lastCall.args[0].headers;
+      expect(callHeaders).to.not.have.property("Content-Type");
     });
 
-    it(`${caseName} works with Delete Request`, async () => {
+    it("Adds Content-Type header for Patch Request", async () => {
       // Arrange
       const iModelsOperationsWrapper = new TestOperationsWrapper(
         {
           restClient,
           api: {version: "version"},
-          headers: headersPassedToConstructor
+          headers: {}
         });
 
       // Act
-      await iModelsOperationsWrapper.sendDeleteRequest({
+      await iModelsOperationsWrapper.sendPatchRequest({
         ...requiredArgs,
-        headers: headersPassedToOperation
+        body: {
+          contentType: ContentType.Json,
+          content: "serialized content"
+        }
       });
 
       // Assert
-      const callHeaders = restClient.sendDeleteRequest.lastCall.args[0].headers;
-      expect(callHeaders).to.include(expectedHeaders);
+      const callHeaders = restClient.sendPatchRequest.lastCall.args[0].headers;
+      expect(callHeaders).to.include({"Content-Type": ContentType.Json});
     });
 
-    it(`${caseName} works with Patch Request`, async () => {
+    it("Does not add Content-Type header for Patch Request", async () => {
       // Arrange
       const iModelsOperationsWrapper = new TestOperationsWrapper(
         {
           restClient,
           api: {version: "version"},
-          headers: headersPassedToConstructor
+          headers: {}
         });
 
       // Act
       await iModelsOperationsWrapper.sendPatchRequest({
         ...requiredArgs,
-        headers: headersPassedToOperation,
-        body: {}
+        body: undefined
       });
 
       // Assert
       const callHeaders = restClient.sendPatchRequest.lastCall.args[0].headers;
-      expect(callHeaders).to.include(expectedHeaders);
+      expect(callHeaders).to.not.have.property("Content-Type");
     });
-  }
+  });
 });
diff --git a/utils/imodels-client-test-utils/package.json b/utils/imodels-client-test-utils/package.json
index 05c4b546..5ea34b7f 100644
--- a/utils/imodels-client-test-utils/package.json
+++ b/utils/imodels-client-test-utils/package.json
@@ -33,7 +33,7 @@
     "@itwin/imodels-client-authoring": "workspace:*",
     "@itwin/imodels-client-management": "workspace:*",
     "@itwin/object-storage-core": "^1.6.0",
-    "axios": "^1.0.0",
+    "axios": "1.1.0",
     "chai": "~4.3.4",
     "dotenv": "~10.0.0",
     "inversify": "~5.0.1",