diff --git a/package.json b/package.json
index 342f645..f14fd3d 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
         "@types/node": "^24",
         "agadoo": "^3.0.0",
         "eslint": "^9.35.0",
-        "happy-dom": "^19.0.1",
+        "happy-dom": "^20.0.0",
         "prettier": "^3.6.2",
         "rimraf": "6.0.1",
         "tsup": "^8.5.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 5129e72..a25f183 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -52,8 +52,8 @@ importers:
         specifier: ^9.35.0
         version: 9.37.0
       happy-dom:
-        specifier: ^19.0.1
-        version: 19.0.2
+        specifier: ^20.0.0
+        version: 20.0.0
       rimraf:
         specifier: 6.0.1
         version: 6.0.1
@@ -65,7 +65,7 @@ importers:
         version: 5.9.3
       vitest:
         specifier: ^3.2.4
-        version: 3.2.4(@types/node@24.7.1)(happy-dom@19.0.2)
+        version: 3.2.4(@types/node@24.7.1)(happy-dom@20.0.0)
 
 packages:
 
@@ -1869,8 +1869,8 @@ packages:
   graphemer@1.4.0:
     resolution: {integrity: sha512-EtKwoO6kxCL9WO5xipiHTZlSzBm7WLT627TqC/uVRd0HKmq8NXyebnNYxDoBi7wt8eTWrUrKXCOVaFq9x1kgag==}
 
-  happy-dom@19.0.2:
-    resolution: {integrity: sha512-831CLbgDyjRbd2lApHZFsBDe56onuFcjsCBPodzWpzedTpeDr8CGZjs7iEIdNW1DVwSFRecfwzLpVyGBPamwGA==}
+  happy-dom@20.0.0:
+    resolution: {integrity: sha512-GkWnwIFxVGCf2raNrxImLo397RdGhLapj5cT3R2PT7FwL62Ze1DROhzmYW7+J3p9105DYMVenEejEbnq5wA37w==}
     engines: {node: '>=20.0.0'}
 
   has-flag@4.0.0:
@@ -4081,8 +4081,8 @@ snapshots:
 
   '@typescript-eslint/project-service@8.43.0(typescript@5.9.3)':
     dependencies:
-      '@typescript-eslint/tsconfig-utils': 8.43.0(typescript@5.9.3)
-      '@typescript-eslint/types': 8.43.0
+      '@typescript-eslint/tsconfig-utils': 8.46.0(typescript@5.9.3)
+      '@typescript-eslint/types': 8.46.0
       debug: 4.4.3
       typescript: 5.9.3
     transitivePeerDependencies:
@@ -5004,7 +5004,7 @@ snapshots:
 
   graphemer@1.4.0: {}
 
-  happy-dom@19.0.2:
+  happy-dom@20.0.0:
     dependencies:
       '@types/node': 20.19.20
       '@types/whatwg-mimetype': 3.0.2
@@ -6107,7 +6107,7 @@ snapshots:
       '@types/node': 24.7.1
       fsevents: 2.3.3
 
-  vitest@3.2.4(@types/node@24.7.1)(happy-dom@19.0.2):
+  vitest@3.2.4(@types/node@24.7.1)(happy-dom@20.0.0):
     dependencies:
       '@types/chai': 5.2.2
       '@vitest/expect': 3.2.4
@@ -6134,7 +6134,7 @@ snapshots:
       why-is-node-running: 2.3.0
     optionalDependencies:
       '@types/node': 24.7.1
-      happy-dom: 19.0.2
+      happy-dom: 20.0.0
     transitivePeerDependencies:
       - jiti
       - less