diff --git a/package-lock.json b/package-lock.json
index c36ba38..3052853 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5107,9 +5107,9 @@
       "license": "ISC"
     },
     "node_modules/happy-dom": {
-      "version": "20.14.6",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.14.6.tgz",
-      "integrity": "sha512-5DDsf4QmEIlRL6NkCv/fxSjYHHkZceL/IaYQdJc2h3G7DRTEai++VTjbfL0LB9geW2VrA3+vrjF3Efx+OTtX0Q==",
+      "version": "21.0.3",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-21.0.3.tgz",
+      "integrity": "sha512-PesNgu5BnIEmAwzKGewB3K1ORFeznFZJ4JrRz89ea1wkHnxskdpzX9sN/+zb4KO6k8oSMhyJSj/cwXAFrYBBNA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -8016,7 +8016,7 @@
         "@types/react-dom": "^19.3.0",
         "@vitejs/plugin-react": "^6.1.2",
         "esbuild": "^0.28.2",
-        "happy-dom": "^20.14.6",
+        "happy-dom": "^21.0.3",
         "typescript": "^7.0.2",
         "vite": "^8.3.4",
         "vite-plugin-top-level-await": "^1.4.4",
diff --git a/packages/extension/package.json b/packages/extension/package.json
index bf51f90..05967df 100644
--- a/packages/extension/package.json
+++ b/packages/extension/package.json
@@ -27,7 +27,7 @@
     "@types/react-dom": "^19.3.0",
     "@vitejs/plugin-react": "^6.1.2",
     "esbuild": "^0.28.2",
-    "happy-dom": "^20.14.6",
+    "happy-dom": "^21.0.3",
     "typescript": "^7.0.2",
     "vite": "^8.3.4",
     "vite-plugin-top-level-await": "^1.4.4",