diff --git a/package-lock.json b/package-lock.json
index f5731686..1745d375 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,7 +18,7 @@
         "eslint": "^8.50.0",
         "eslint-import-resolver-typescript": "^3.6.1",
         "eslint-plugin-import": "^2.28.1",
-        "happy-dom": "^12.2.1",
+        "happy-dom": "^12.9.0",
         "less": "^4.2.0",
         "postcss-less": "^6.0.0",
         "prettier": "^3.0.3",
@@ -2714,9 +2714,9 @@
       "dev": true
     },
     "node_modules/happy-dom": {
-      "version": "12.2.1",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-12.2.1.tgz",
-      "integrity": "sha512-yIubME+FcwUuKjmiDlJdhEIax3UnZIweqn/E6AE2bJTIXJv4DP2/ULh0ZnhkCxP05SJsyG6CRFxM/r2HAuWesA==",
+      "version": "12.9.0",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-12.9.0.tgz",
+      "integrity": "sha512-Ap/bcno2k5316FYDqBJ2i0O1zS78W1jsNR4F/p2t3zdNoa+2H0k851RGef4STfIKdTwcQ/nk5Tx9d5BzQXfTrw==",
       "dev": true,
       "dependencies": {
         "css.escape": "^1.5.1",
diff --git a/package.json b/package.json
index f73868ee..e362409a 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "eslint": "^8.50.0",
     "eslint-import-resolver-typescript": "^3.6.1",
     "eslint-plugin-import": "^2.28.1",
-    "happy-dom": "^12.2.1",
+    "happy-dom": "^12.9.0",
     "less": "^4.2.0",
     "postcss-less": "^6.0.0",
     "prettier": "^3.0.3",