diff --git a/examples/fdc3-chart-and-grid/js-datagrid/package.json b/examples/fdc3-chart-and-grid/js-datagrid/package.json
index 9541d7a66..06904f2e6 100644
--- a/examples/fdc3-chart-and-grid/js-datagrid/package.json
+++ b/examples/fdc3-chart-and-grid/js-datagrid/package.json
@@ -13,7 +13,7 @@
     "@angular/animations": "21.1.5",
     "@angular/cdk": "21.1.5",
     "@angular/common": "20.3.25",
-    "@angular/compiler": "21.1.5",
+    "@angular/compiler": "20.3.25",
     "@angular/core": "21.1.5",
     "@angular/flex-layout": "^15.0.0-beta.42",
     "@angular/forms": "21.1.5",
diff --git a/examples/fdc3-trade-simulator/js-order-book/package.json b/examples/fdc3-trade-simulator/js-order-book/package.json
index fe047fd2d..3fe7ef4c1 100644
--- a/examples/fdc3-trade-simulator/js-order-book/package.json
+++ b/examples/fdc3-trade-simulator/js-order-book/package.json
@@ -12,7 +12,7 @@
   "dependencies": {
     "@angular/animations": "21.1.5",
     "@angular/common": "^20.3.25",
-    "@angular/compiler": "^21.1.5",
+    "@angular/compiler": "^20.3.25",
     "@angular/core": "^21.1.5",
     "@angular/forms": "^21.1.5",
     "@angular/material": "21.1.5",
diff --git a/examples/fdc3-trade-simulator/js-trader-app/package.json b/examples/fdc3-trade-simulator/js-trader-app/package.json
index c36ef9636..3689f7695 100644
--- a/examples/fdc3-trade-simulator/js-trader-app/package.json
+++ b/examples/fdc3-trade-simulator/js-trader-app/package.json
@@ -13,7 +13,7 @@
     "@angular/animations": "21.1.5",
     "@angular/cdk": "^21.1.5",
     "@angular/common": "^20.3.25",
-    "@angular/compiler": "^21.1.5",
+    "@angular/compiler": "^20.3.25",
     "@angular/core": "^21.1.5",
     "@angular/forms": "^21.1.5",
     "@angular/material": "21.1.5",
diff --git a/examples/js-chart-and-grid-messagerouter/js-datagrid/package.json b/examples/js-chart-and-grid-messagerouter/js-datagrid/package.json
index fb9c2f4ea..2cbe64900 100644
--- a/examples/js-chart-and-grid-messagerouter/js-datagrid/package.json
+++ b/examples/js-chart-and-grid-messagerouter/js-datagrid/package.json
@@ -13,7 +13,7 @@
     "@angular/animations": "21.1.5",
     "@angular/cdk": "21.1.5",
     "@angular/common": "20.3.25",
-    "@angular/compiler": "21.1.5",
+    "@angular/compiler": "20.3.25",
     "@angular/core": "21.1.5",
     "@angular/flex-layout": "^15.0.0-beta.42",
     "@angular/forms": "21.1.5",
diff --git a/package-lock.json b/package-lock.json
index ff97c52fb..8727caabd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32,7 +32,7 @@
       "devDependencies": {
         "http-server": "14.1.1",
         "rimraf": "6.1.3",
-        "webpack": "^5.108.3",
+        "webpack": "5.108.3",
         "webpack-cli": "^6.0.1"
       }
     },
@@ -49,7 +49,7 @@
         "@angular/animations": "21.1.5",
         "@angular/cdk": "21.1.5",
         "@angular/common": "20.3.25",
-        "@angular/compiler": "21.1.5",
+        "@angular/compiler": "^20.3.25",
         "@angular/core": "21.1.5",
         "@angular/flex-layout": "^15.0.0-beta.42",
         "@angular/forms": "21.1.5",
@@ -93,6 +93,18 @@
         "rxjs": "^6.5.3 || ^7.4.0"
       }
     },
+    "examples/fdc3-chart-and-grid/js-datagrid/node_modules/@angular/compiler": {
+      "version": "20.3.25",
+      "resolved": "https://registry.npmjs.org/@angular/compiler/-/compiler-20.3.25.tgz",
+      "integrity": "sha512-TSh6gVoQqlLPqWwsYMK0lfVEQYENQO+USzS+BHFXEHFfgBRap6qDpIUGnRdj0Y2PlaVJUVFbeq1855EZUPUEoA==",
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "^2.3.0"
+      },
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
+      }
+    },
     "examples/fdc3-chart-and-grid/js-datagrid/node_modules/@finos/fdc3": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/@finos/fdc3/-/fdc3-2.0.3.tgz",
@@ -153,7 +165,7 @@
       "dependencies": {
         "@angular/animations": "21.1.5",
         "@angular/common": "^20.3.25",
-        "@angular/compiler": "^21.1.5",
+        "@angular/compiler": "^20.3.25",
         "@angular/core": "^21.1.5",
         "@angular/forms": "^21.1.5",
         "@angular/material": "21.1.5",
@@ -195,6 +207,18 @@
         "rxjs": "^6.5.3 || ^7.4.0"
       }
     },
+    "examples/fdc3-trade-simulator/js-order-book/node_modules/@angular/compiler": {
+      "version": "20.3.25",
+      "resolved": "https://registry.npmjs.org/@angular/compiler/-/compiler-20.3.25.tgz",
+      "integrity": "sha512-TSh6gVoQqlLPqWwsYMK0lfVEQYENQO+USzS+BHFXEHFfgBRap6qDpIUGnRdj0Y2PlaVJUVFbeq1855EZUPUEoA==",
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "^2.3.0"
+      },
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
+      }
+    },
     "examples/fdc3-trade-simulator/js-order-book/node_modules/@finos/fdc3": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/@finos/fdc3/-/fdc3-2.0.3.tgz",
@@ -208,7 +232,7 @@
         "@angular/animations": "21.1.5",
         "@angular/cdk": "^21.1.5",
         "@angular/common": "^20.3.25",
-        "@angular/compiler": "^21.1.5",
+        "@angular/compiler": "^20.3.25",
         "@angular/core": "^21.1.5",
         "@angular/forms": "^21.1.5",
         "@angular/material": "21.1.5",
@@ -250,6 +274,18 @@
         "rxjs": "^6.5.3 || ^7.4.0"
       }
     },
+    "examples/fdc3-trade-simulator/js-trader-app/node_modules/@angular/compiler": {
+      "version": "20.3.25",
+      "resolved": "https://registry.npmjs.org/@angular/compiler/-/compiler-20.3.25.tgz",
+      "integrity": "sha512-TSh6gVoQqlLPqWwsYMK0lfVEQYENQO+USzS+BHFXEHFfgBRap6qDpIUGnRdj0Y2PlaVJUVFbeq1855EZUPUEoA==",
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "^2.3.0"
+      },
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
+      }
+    },
     "examples/js-chart-and-grid-messagerouter/js-chart": {
       "name": "@morgan-stanley/composeui-example-chart-messagerouter",
       "version": "0.1.0",
@@ -264,7 +300,7 @@
         "@webpack-cli/generators": "^3.0.7",
         "http-server": "14.1.1",
         "rimraf": "6.1.3",
-        "webpack": "^5.108.3",
+        "webpack": "5.108.3",
         "webpack-cli": "^6.0.1"
       }
     },
@@ -281,7 +317,7 @@
         "@angular/animations": "21.1.5",
         "@angular/cdk": "21.1.5",
         "@angular/common": "20.3.25",
-        "@angular/compiler": "21.1.5",
+        "@angular/compiler": "^20.3.25",
         "@angular/core": "21.1.5",
         "@angular/flex-layout": "^15.0.0-beta.42",
         "@angular/forms": "21.1.5",
@@ -324,6 +360,18 @@
         "rxjs": "^6.5.3 || ^7.4.0"
       }
     },
+    "examples/js-chart-and-grid-messagerouter/js-datagrid/node_modules/@angular/compiler": {
+      "version": "20.3.25",
+      "resolved": "https://registry.npmjs.org/@angular/compiler/-/compiler-20.3.25.tgz",
+      "integrity": "sha512-TSh6gVoQqlLPqWwsYMK0lfVEQYENQO+USzS+BHFXEHFfgBRap6qDpIUGnRdj0Y2PlaVJUVFbeq1855EZUPUEoA==",
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "^2.3.0"
+      },
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
+      }
+    },
     "node_modules/@acemir/cssom": {
       "version": "0.9.31",
       "resolved": "https://registry.npmjs.org/@acemir/cssom/-/cssom-0.9.31.tgz",
@@ -1363,6 +1411,7 @@
       "resolved": "https://registry.npmjs.org/@angular/compiler/-/compiler-21.1.5.tgz",
       "integrity": "sha512-yRUdWlL+AWcTL4d7zD0jkNqsjvxXpWEihvOfD2gc65DO0+E80DsWIpHq9A8yWeLukbfLcmBGI2QbfW9+SXAlvg==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "tslib": "^2.3.0"
       },
@@ -26721,7 +26770,7 @@
         "@angular/animations": "^20.3.15",
         "@angular/cdk": "^20.2.14",
         "@angular/common": "^20.3.25",
-        "@angular/compiler": "^20.3.15",
+        "@angular/compiler": "^20.3.25",
         "@angular/core": "^20.3.15",
         "@angular/forms": "^20.3.15",
         "@angular/material": "^20.2.14",
@@ -27203,9 +27252,9 @@
       }
     },
     "prototypes/process-explorer/oss-frontend/node_modules/@angular/compiler": {
-      "version": "20.3.16",
-      "resolved": "https://registry.npmjs.org/@angular/compiler/-/compiler-20.3.16.tgz",
-      "integrity": "sha512-Pt9Ms9GwTThgzdxWBwMfN8cH1JEtQ2DK5dc2yxYtPSaD+WKmG9AVL1PrzIYQEbaKcWk2jxASUHpEWSlNiwo8uw==",
+      "version": "20.3.25",
+      "resolved": "https://registry.npmjs.org/@angular/compiler/-/compiler-20.3.25.tgz",
+      "integrity": "sha512-TSh6gVoQqlLPqWwsYMK0lfVEQYENQO+USzS+BHFXEHFfgBRap6qDpIUGnRdj0Y2PlaVJUVFbeq1855EZUPUEoA==",
       "license": "MIT",
       "dependencies": {
         "tslib": "^2.3.0"
diff --git a/prototypes/process-explorer/oss-frontend/package.json b/prototypes/process-explorer/oss-frontend/package.json
index c601894e4..b042c25a3 100644
--- a/prototypes/process-explorer/oss-frontend/package.json
+++ b/prototypes/process-explorer/oss-frontend/package.json
@@ -15,7 +15,7 @@
     "@angular/animations": "^20.3.15",
     "@angular/cdk": "^20.2.14",
     "@angular/common": "^20.3.25",
-    "@angular/compiler": "^20.3.15",
+    "@angular/compiler": "^20.3.25",
     "@angular/core": "^20.3.15",
     "@angular/forms": "^20.3.15",
     "@angular/material": "^20.2.14",