diff --git a/api-service/webapp-demo/package.json b/api-service/webapp-demo/package.json
index a9fa0de..65ca8fa 100644
--- a/api-service/webapp-demo/package.json
+++ b/api-service/webapp-demo/package.json
@@ -17,7 +17,7 @@
   "dependencies": {
     "@angular/animations": "^4.0.0",
     "@angular/cdk": "^2.0.0-beta.12",
-    "@angular/common": "^4.0.0",
+    "@angular/common": "^20.3.25",
     "@angular/compiler": "^4.0.0",
     "@angular/core": "^4.0.0",
     "@angular/forms": "^4.0.0",
diff --git a/api-service/webapp-demo/yarn.lock b/api-service/webapp-demo/yarn.lock
index 04f52b3..d3eb7fb 100644
--- a/api-service/webapp-demo/yarn.lock
+++ b/api-service/webapp-demo/yarn.lock
@@ -108,11 +108,12 @@
   optionalDependencies:
     node-sass "^4.7.2"
 
-"@angular/common@^4.0.0":
-  version "4.4.4"
-  resolved "https://registry.yarnpkg.com/@angular/common/-/common-4.4.4.tgz#ae0a818aaa0c6a3f0901e7b80bd94e1c22eb9365"
+"@angular/common@^20.3.25":
+  version "20.3.25"
+  resolved "https://registry.yarnpkg.com/@angular/common/-/common-20.3.25.tgz#0f2bd058ec6595cfb4dd6a05601c41cb5cf3cb23"
+  integrity sha512-rnRGcXbjet0DHgkRL4Dqxk21G2T4UypVfiTV/fay58H8w9U89PJ1L6gRmk8B/uyfpii/9r23cBwnpcguQykxYw==
   dependencies:
-    tslib "^1.7.1"
+    tslib "^2.3.0"
 
 "@angular/compiler-cli@^4.0.0":
   version "4.4.4"
@@ -6670,6 +6671,11 @@ tslib@^1.6.0, tslib@^1.7.1:
   version "1.7.1"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.7.1.tgz#bc8004164691923a79fe8378bbeb3da2017538ec"
 
+tslib@^2.3.0:
+  version "2.8.1"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.8.1.tgz#612efe4ed235d567e8aba5f2a5fab70280ade83f"
+  integrity sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==
+
 tslint@~5.3.2:
   version "5.3.2"
   resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.3.2.tgz#e56459fb095a7307f103b84052174f5e3bbef6ed"