diff --git a/package.json b/package.json
index 7f9511ec..f44058dd 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "eslint-plugin-vue": "^10.10.0",
     "eslint-plugin-vuejs-accessibility": "^2.6.0",
     "globals": "^17.11.0",
-    "happy-dom": "^20.11.15",
+    "happy-dom": "^20.12.0",
     "lightningcss": "^1.33.0",
     "sass": "^1.103.1",
     "start-server-and-test": "^3.0.12",
diff --git a/yarn.lock b/yarn.lock
index 128f5644..b22cdaec 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2273,10 +2273,10 @@ graceful-fs@^4.1.6, graceful-fs@^4.2.0:
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.11.tgz#4183e4e8bf08bb6e05bbb2f7d2e0c8f712ca40e3"
   integrity sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==
 
-happy-dom@^20.11.15:
-  version "20.11.15"
-  resolved "https://registry.yarnpkg.com/happy-dom/-/happy-dom-20.11.15.tgz#6f61c418aebc4cc840a0321c10c50bfd91abb654"
-  integrity sha512-bj2gQIKzOYB6GAAJ/jrN/IFHQe79MhEOiMAspRRWiKebRoegvGDv2B6eUt8KiZMTEDvx6ri0fAF7Xh/umAUUZA==
+happy-dom@^20.12.0:
+  version "20.12.0"
+  resolved "https://registry.yarnpkg.com/happy-dom/-/happy-dom-20.12.0.tgz#5ae13e8186eb6ea11f03eecb38716659355c36fd"
+  integrity sha512-7uMYJu2SEwwL8vVcKp0C0lnt6d2LSGGe+T+oY79PiCJNNSgFpbxW8n5KuzpDQvrU4mt+fYiK1+Jy7Z2v39YR6g==
   dependencies:
     "@types/node" ">=20.0.0"
     "@types/whatwg-mimetype" "^3.0.2"