diff --git a/package.json b/package.json
index e0ba68a..1e2be14 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "eslint-plugin-unused-imports": "^4.3.0",
     "gh-pages": "^6.3.0",
     "globals": "^16.5.0",
-    "happy-dom": "^20.0.10",
+    "happy-dom": "^20.0.11",
     "lit": "^3.3.1",
     "rollup-plugin-visualizer": "^6.0.5",
     "sinon": "^21.0.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9555e18..9ab7720 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -71,7 +71,7 @@ importers:
         version: 8.47.0(eslint@9.39.1)(typescript@5.9.3)
       '@vitest/coverage-v8':
         specifier: ^4.0.10
-        version: 4.0.10(vitest@4.0.10(@types/node@24.10.1)(happy-dom@20.0.10))
+        version: 4.0.10(vitest@4.0.10(@types/node@24.10.1)(happy-dom@20.0.11))
       eslint:
         specifier: ^9.39.1
         version: 9.39.1
@@ -85,8 +85,8 @@ importers:
         specifier: ^16.5.0
         version: 16.5.0
       happy-dom:
-        specifier: ^20.0.10
-        version: 20.0.10
+        specifier: ^20.0.11
+        version: 20.0.11
       lit:
         specifier: ^3.3.1
         version: 3.3.1
@@ -107,7 +107,7 @@ importers:
         version: 7.2.2(@types/node@24.10.1)
       vitest:
         specifier: ^4.0.10
-        version: 4.0.10(@types/node@24.10.1)(happy-dom@20.0.10)
+        version: 4.0.10(@types/node@24.10.1)(happy-dom@20.0.11)
 
 packages:
 
@@ -1021,8 +1021,8 @@ packages:
   graphemer@1.4.0:
     resolution: {integrity: sha512-EtKwoO6kxCL9WO5xipiHTZlSzBm7WLT627TqC/uVRd0HKmq8NXyebnNYxDoBi7wt8eTWrUrKXCOVaFq9x1kgag==}
 
-  happy-dom@20.0.10:
-    resolution: {integrity: sha512-6umCCHcjQrhP5oXhrHQQvLB0bwb1UzHAHdsXy+FjtKoYjUhmNZsQL8NivwM1vDvNEChJabVrUYxUnp/ZdYmy2g==}
+  happy-dom@20.0.11:
+    resolution: {integrity: sha512-QsCdAUHAmiDeKeaNojb1OHOPF7NjcWPBR7obdu3NwH2a/oyQaLg5d0aaCy/9My6CdPChYF07dvz5chaXBGaD4g==}
     engines: {node: '>=20.0.0'}
 
   has-flag@4.0.0:
@@ -2042,7 +2042,7 @@ snapshots:
       '@typescript-eslint/types': 8.47.0
       eslint-visitor-keys: 4.2.1
 
-  '@vitest/coverage-v8@4.0.10(vitest@4.0.10(@types/node@24.10.1)(happy-dom@20.0.10))':
+  '@vitest/coverage-v8@4.0.10(vitest@4.0.10(@types/node@24.10.1)(happy-dom@20.0.11))':
     dependencies:
       '@bcoe/v8-coverage': 1.0.2
       '@vitest/utils': 4.0.10
@@ -2055,7 +2055,7 @@ snapshots:
       magicast: 0.5.1
       std-env: 3.10.0
       tinyrainbow: 3.0.3
-      vitest: 4.0.10(@types/node@24.10.1)(happy-dom@20.0.10)
+      vitest: 4.0.10(@types/node@24.10.1)(happy-dom@20.0.11)
     transitivePeerDependencies:
       - supports-color
 
@@ -2445,7 +2445,7 @@ snapshots:
 
   graphemer@1.4.0: {}
 
-  happy-dom@20.0.10:
+  happy-dom@20.0.11:
     dependencies:
       '@types/node': 20.19.25
       '@types/whatwg-mimetype': 3.0.2
@@ -2869,7 +2869,7 @@ snapshots:
       '@types/node': 24.10.1
       fsevents: 2.3.3
 
-  vitest@4.0.10(@types/node@24.10.1)(happy-dom@20.0.10):
+  vitest@4.0.10(@types/node@24.10.1)(happy-dom@20.0.11):
     dependencies:
       '@vitest/expect': 4.0.10
       '@vitest/mocker': 4.0.10(vite@7.2.2(@types/node@24.10.1))
@@ -2893,7 +2893,7 @@ snapshots:
       why-is-node-running: 2.3.0
     optionalDependencies:
       '@types/node': 24.10.1
-      happy-dom: 20.0.10
+      happy-dom: 20.0.11
     transitivePeerDependencies:
       - jiti
       - less