diff --git a/napi/angular-compiler/e2e/compare/package.json b/napi/angular-compiler/e2e/compare/package.json
index 165616b6e..d083fb5fc 100644
--- a/napi/angular-compiler/e2e/compare/package.json
+++ b/napi/angular-compiler/e2e/compare/package.json
@@ -22,7 +22,7 @@
     "@angular/forms": "^21.2.2",
     "@angular/platform-browser": "^21.2.2",
     "@angular/router": "^21.2.2",
-    "diff": "^8.0.3",
+    "diff": "^9.0.0",
     "fast-glob": "^3.3.3",
     "p-limit": "^7.3.0",
     "rxjs": "catalog:",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index aa5e4a699..ac6fccee2 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -364,8 +364,8 @@ importers:
         specifier: ^21.2.2
         version: 21.2.9(@angular/common@21.2.9(@angular/core@21.2.9(@angular/compiler@21.2.9)(rxjs@7.8.2)(zone.js@0.16.1))(rxjs@7.8.2))(@angular/core@21.2.9(@angular/compiler@21.2.9)(rxjs@7.8.2)(zone.js@0.16.1))(@angular/platform-browser@21.2.9(@angular/animations@21.2.9(@angular/core@21.2.9(@angular/compiler@21.2.9)(rxjs@7.8.2)(zone.js@0.16.1)))(@angular/common@21.2.9(@angular/core@21.2.9(@angular/compiler@21.2.9)(rxjs@7.8.2)(zone.js@0.16.1))(rxjs@7.8.2))(@angular/core@21.2.9(@angular/compiler@21.2.9)(rxjs@7.8.2)(zone.js@0.16.1)))(rxjs@7.8.2)
       diff:
-        specifier: ^8.0.3
-        version: 8.0.4
+        specifier: ^9.0.0
+        version: 9.0.0
       fast-glob:
         specifier: ^3.3.3
         version: 3.3.3
@@ -3604,8 +3604,8 @@ packages:
     resolution: {integrity: sha512-Btj2BOOO83o3WyH59e8MgXsxEQVcarkUOpEYrubB0urwnN10yQ364rsiByU11nZlqWYZm05i/of7io4mzihBtQ==}
     engines: {node: '>=8'}
 
-  diff@8.0.4:
-    resolution: {integrity: sha512-DPi0FmjiSU5EvQV0++GFDOJ9ASQUVFh5kD+OzOnYdi7n3Wpm9hWWGfB/O2blfHcMVTL5WkQXSnRiK9makhrcnw==}
+  diff@9.0.0:
+    resolution: {integrity: sha512-svtcdpS8CgJyqAjEQIXdb3OjhFVVYjzGAPO8WGCmRbrml64SPw/jJD4GoE98aR7r25A0XcgrK3F02yw9R/vhQw==}
     engines: {node: '>=0.3.1'}
 
   dom-serializer@2.0.0:
@@ -7103,7 +7103,7 @@ snapshots:
 
   detect-libc@2.1.2: {}
 
-  diff@8.0.4: {}
+  diff@9.0.0: {}
 
   dom-serializer@2.0.0:
     dependencies: