diff --git a/package-lock.json b/package-lock.json
index 22672fd5..e7dea029 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "ISC",
       "dependencies": {
         "@govtechsg/oa-encryption": "^1.3.5",
-        "@govtechsg/open-attestation": "^6.6.0",
+        "@govtechsg/open-attestation": "^6.9.0",
         "@govtechsg/opencerts-verify": "^3.1.3",
         "aws-sdk": "^2.590.0",
         "lodash": "^4.17.13",
@@ -2679,17 +2679,15 @@
       }
     },
     "node_modules/@govtechsg/open-attestation": {
-      "version": "6.6.0",
-      "resolved": "https://registry.npmjs.org/@govtechsg/open-attestation/-/open-attestation-6.6.0.tgz",
-      "integrity": "sha512-dMkw9o7GbBxzJ/6nuGjJ09oBOqBhLn7EK/H/10h+oQAzAXwh09cGztQx8at5Regya1ppi+WaLRUwSr9esiDoGw==",
+      "version": "6.9.0",
+      "resolved": "https://registry.npmjs.org/@govtechsg/open-attestation/-/open-attestation-6.9.0.tgz",
+      "integrity": "sha512-213TWxhmboOK6FV6eBy955NX9jrPPNJXrVicTr2a4xNaQioFHjcbEY4wBq+3LjAb0xcleUCYXUFlqkXUaMYpBg==",
       "hasInstallScript": true,
       "dependencies": {
         "@govtechsg/jsonld": "^0.1.0",
-        "ajv": "^8.6.2",
-        "ajv-formats": "^2.1.0",
         "cross-fetch": "^3.1.5",
         "debug": "^4.3.2",
-        "ethers": "^5.4.3",
+        "ethers": "^5.7.2",
         "flatley": "^5.2.0",
         "js-base64": "^3.6.1",
         "js-sha3": "^0.8.0",
diff --git a/package.json b/package.json
index 4070f8dc..4b12a31b 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
   "license": "ISC",
   "dependencies": {
     "@govtechsg/oa-encryption": "^1.3.5",
-    "@govtechsg/open-attestation": "^6.6.0",
+    "@govtechsg/open-attestation": "^6.9.0",
     "@govtechsg/opencerts-verify": "^3.1.3",
     "aws-sdk": "^2.590.0",
     "lodash": "^4.17.13",