diff --git a/package.json b/package.json
index 8e53a0fc..a72f127d 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,7 @@
     "eslint-plugin-prettier": "^5.2.1",
     "eslint-plugin-vue": "^9.27.0",
     "globals": "^15.9.0",
-    "happy-dom": "^14.12.3",
+    "happy-dom": "^15.0.0",
     "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 3ede4bd0..0dfe4a5f 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -130,8 +130,8 @@ importers:
         specifier: ^15.9.0
         version: 15.9.0
       happy-dom:
-        specifier: ^14.12.3
-        version: 14.12.3
+        specifier: ^15.0.0
+        version: 15.0.0
       mutationobserver-shim:
         specifier: ^0.3.7
         version: 0.3.7
@@ -164,7 +164,7 @@ importers:
         version: 5.4.2(@types/node@22.5.1)(sass@1.77.8)
       vitest:
         specifier: ^2.0.5
-        version: 2.0.5(@types/node@22.5.1)(happy-dom@14.12.3)(sass@1.77.8)
+        version: 2.0.5(@types/node@22.5.1)(happy-dom@15.0.0)(sass@1.77.8)
       vue-tsc:
         specifier: ^2.0.29
         version: 2.0.29(typescript@5.5.4)
@@ -1318,9 +1318,9 @@ packages:
   graphemer@1.4.0:
     resolution: {integrity: sha512-EtKwoO6kxCL9WO5xipiHTZlSzBm7WLT627TqC/uVRd0HKmq8NXyebnNYxDoBi7wt8eTWrUrKXCOVaFq9x1kgag==}
 
-  happy-dom@14.12.3:
-    resolution: {integrity: sha512-vsYlEs3E9gLwA1Hp+w3qzu+RUDFf4VTT8cyKqVICoZ2k7WM++Qyd2LwzyTi5bqMJFiIC/vNpTDYuxdreENRK/g==}
-    engines: {node: '>=16.0.0'}
+  happy-dom@15.0.0:
+    resolution: {integrity: sha512-DsvANUcxxY20iCo3Yllm7dqwzPVPduGfVFxa7mONwMBLczFeQgkN0LpDir1kIY322JMh+hrcPV3aGLyHCESDlA==}
+    engines: {node: '>=18.0.0'}
 
   has-flag@4.0.0:
     resolution: {integrity: sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==}
@@ -3305,7 +3305,7 @@ snapshots:
 
   graphemer@1.4.0: {}
 
-  happy-dom@14.12.3:
+  happy-dom@15.0.0:
     dependencies:
       entities: 4.5.0
       webidl-conversions: 7.0.0
@@ -3868,7 +3868,7 @@ snapshots:
       fsevents: 2.3.3
       sass: 1.77.8
 
-  vitest@2.0.5(@types/node@22.5.1)(happy-dom@14.12.3)(sass@1.77.8):
+  vitest@2.0.5(@types/node@22.5.1)(happy-dom@15.0.0)(sass@1.77.8):
     dependencies:
       '@ampproject/remapping': 2.3.0
       '@vitest/expect': 2.0.5
@@ -3891,7 +3891,7 @@ snapshots:
       why-is-node-running: 2.3.0
     optionalDependencies:
       '@types/node': 22.5.1
-      happy-dom: 14.12.3
+      happy-dom: 15.0.0
     transitivePeerDependencies:
       - less
       - lightningcss