diff --git a/package.json b/package.json
index 40ade7914..d0cd3f7d1 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,7 @@
     "eslint-plugin-prettier": "^5.2.1",
     "eslint-plugin-vue": "^9.30.0",
     "globals": "^15.12.0",
-    "happy-dom": "^15.10.2",
+    "happy-dom": "^15.11.4",
     "mutationobserver-shim": "^0.3.7",
     "portal-vue": "^3.0.0",
     "prettier": "^3.3.3",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 1e2dc2504..3b4bdf82a 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -130,8 +130,8 @@ importers:
         specifier: ^15.12.0
         version: 15.12.0
       happy-dom:
-        specifier: ^15.10.2
-        version: 15.10.2
+        specifier: ^15.11.4
+        version: 15.11.4
       mutationobserver-shim:
         specifier: ^0.3.7
         version: 0.3.7
@@ -164,7 +164,7 @@ importers:
         version: 5.4.10(@types/node@22.9.0)(sass@1.80.6)
       vitest:
         specifier: ^2.1.4
-        version: 2.1.4(@types/node@22.9.0)(happy-dom@15.10.2)(sass@1.80.6)
+        version: 2.1.4(@types/node@22.9.0)(happy-dom@15.11.4)(sass@1.80.6)
       vue-tsc:
         specifier: ^2.1.10
         version: 2.1.10(typescript@5.6.3)
@@ -1546,8 +1546,8 @@ packages:
   graphemer@1.4.0:
     resolution: {integrity: sha512-EtKwoO6kxCL9WO5xipiHTZlSzBm7WLT627TqC/uVRd0HKmq8NXyebnNYxDoBi7wt8eTWrUrKXCOVaFq9x1kgag==}
 
-  happy-dom@15.10.2:
-    resolution: {integrity: sha512-NbA5XrSovenJIIcfixCREX3ZnV7yHP4phhbfuxxf4CPn+LZpz/jIM9EqJ2DrPwgVDSMoAKH3pZwQvkbsSiCrUw==}
+  happy-dom@15.11.4:
+    resolution: {integrity: sha512-AU6tzh3ADd28vSmXahgLsGyGGihXPGeKH0owDn9lhHolB6vIwEhag//T+TBzDoAcHhmVEwlxwSgtW1KZep+1MA==}
     engines: {node: '>=18.0.0'}
 
   has-flag@4.0.0:
@@ -3908,7 +3908,7 @@ snapshots:
 
   graphemer@1.4.0: {}
 
-  happy-dom@15.10.2:
+  happy-dom@15.11.4:
     dependencies:
       entities: 4.5.0
       webidl-conversions: 7.0.0
@@ -4641,7 +4641,7 @@ snapshots:
       fsevents: 2.3.3
       sass: 1.80.6
 
-  vitest@2.1.4(@types/node@22.9.0)(happy-dom@15.10.2)(sass@1.80.6):
+  vitest@2.1.4(@types/node@22.9.0)(happy-dom@15.11.4)(sass@1.80.6):
     dependencies:
       '@vitest/expect': 2.1.4
       '@vitest/mocker': 2.1.4(vite@5.4.10(@types/node@22.9.0)(sass@1.80.6))
@@ -4665,7 +4665,7 @@ snapshots:
       why-is-node-running: 2.3.0
     optionalDependencies:
       '@types/node': 22.9.0
-      happy-dom: 15.10.2
+      happy-dom: 15.11.4
     transitivePeerDependencies:
       - less
       - lightningcss