diff --git a/package.json b/package.json
index 996338b..c188d10 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "eslint": "^10.11.0",
     "eslint-plugin-vue": "^10.11.1",
     "globals": "^17.12.0",
-    "happy-dom": "^20.14.5",
+    "happy-dom": "^21.0.0",
     "prettier": "^3.9.9",
     "tailwindcss": "^4.3.3",
     "typescript": "~6.0.3",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 7924e12..14abb8d 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -73,8 +73,8 @@ importers:
         specifier: ^17.12.0
         version: 17.13.0
       happy-dom:
-        specifier: ^20.14.5
-        version: 20.14.6
+        specifier: ^21.0.0
+        version: 21.0.1
       prettier:
         specifier: ^3.9.9
         version: 3.9.10
@@ -92,7 +92,7 @@ importers:
         version: 8.3.4(@types/node@26.6.5)(jiti@2.7.0)
       vitest:
         specifier: ^5.0.1
-        version: 5.0.3(@types/node@26.6.5)(happy-dom@20.14.6)(vite@8.3.4(@types/node@26.6.5)(jiti@2.7.0))
+        version: 5.0.3(@types/node@26.6.5)(happy-dom@21.0.1)(vite@8.3.4(@types/node@26.6.5)(jiti@2.7.0))
       vue-tsc:
         specifier: ^3.3.11
         version: 3.3.13(typescript@6.0.3)
@@ -899,8 +899,8 @@ packages:
   graceful-fs@4.2.11:
     resolution: {integrity: sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==}
 
-  happy-dom@20.14.6:
-    resolution: {integrity: sha512-5DDsf4QmEIlRL6NkCv/fxSjYHHkZceL/IaYQdJc2h3G7DRTEai++VTjbfL0LB9geW2VrA3+vrjF3Efx+OTtX0Q==}
+  happy-dom@21.0.1:
+    resolution: {integrity: sha512-pRBs/u9fhrncyByOl58DMex0R2uAj6ZPKWIjV5j5yNGZBqLw3P6BTRhlc0DD5b/Ht4/6JYTMuE2LJhUWRC6SGw==}
     engines: {node: '>=20.0.0'}
 
   hashery@1.5.1:
@@ -2252,7 +2252,7 @@ snapshots:
 
   graceful-fs@4.2.11: {}
 
-  happy-dom@20.14.6:
+  happy-dom@21.0.1:
     dependencies:
       '@types/node': 26.6.5
       '@types/whatwg-mimetype': 3.0.2
@@ -2631,7 +2631,7 @@ snapshots:
       fsevents: 2.3.3
       jiti: 2.7.0
 
-  vitest@5.0.3(@types/node@26.6.5)(happy-dom@20.14.6)(vite@8.3.4(@types/node@26.6.5)(jiti@2.7.0)):
+  vitest@5.0.3(@types/node@26.6.5)(happy-dom@21.0.1)(vite@8.3.4(@types/node@26.6.5)(jiti@2.7.0)):
     dependencies:
       '@types/chai': 5.2.3
       '@vitest/mocker': 5.0.3(vite@8.3.4(@types/node@26.6.5)(jiti@2.7.0))
@@ -2649,7 +2649,7 @@ snapshots:
       why-is-node-running: 3.2.1
     optionalDependencies:
       '@types/node': 26.6.5
-      happy-dom: 20.14.6
+      happy-dom: 21.0.1
     transitivePeerDependencies:
       - msw