diff --git a/package.json b/package.json
index cae431c4f..6b6724439 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
         "eslint-plugin-simple-import-sort": "^12.1.1",
         "eslint-plugin-sort-keys-fix": "^1.1.2",
         "eslint-plugin-typescript-sort-keys": "^3.3.0",
-        "happy-dom": "^16.3.0",
+        "happy-dom": "^16.5.3",
         "prettier": "^3.4.2",
         "rimraf": "6.0.1",
         "tsup": "^8.3.5",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 48ae2052e..b5eac4bb6 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -54,8 +54,8 @@ importers:
         specifier: ^3.3.0
         version: 3.3.0(@typescript-eslint/parser@8.19.1(eslint@9.17.0)(typescript@5.7.2))(eslint@9.17.0)(typescript@5.7.2)
       happy-dom:
-        specifier: ^16.3.0
-        version: 16.3.0
+        specifier: ^16.5.3
+        version: 16.5.3
       prettier:
         specifier: ^3.4.2
         version: 3.4.2
@@ -73,7 +73,7 @@ importers:
         version: 5.7.2
       vitest:
         specifier: ^2.1.8
-        version: 2.1.8(@types/node@22.10.0)(happy-dom@16.3.0)
+        version: 2.1.8(@types/node@22.10.0)(happy-dom@16.5.3)
       zx:
         specifier: ^8.3.0
         version: 8.3.0
@@ -2138,8 +2138,8 @@ packages:
   graphemer@1.4.0:
     resolution: {integrity: sha512-EtKwoO6kxCL9WO5xipiHTZlSzBm7WLT627TqC/uVRd0HKmq8NXyebnNYxDoBi7wt8eTWrUrKXCOVaFq9x1kgag==}
 
-  happy-dom@16.3.0:
-    resolution: {integrity: sha512-Q71RaIhyS21vhW17Tpa5W36yqQXIlE1TZ0A0Gguts8PShUSQE/7fBgxYGxgm3+5y0gF6afdlAVHLQqgrIcfRzg==}
+  happy-dom@16.5.3:
+    resolution: {integrity: sha512-7zGnyROZuntn+5X84MQ535qiQ3ccm45uHl+Q7EFAcPP0NhkbrfPitqprz0GgszX91/QqsZKQ7nTYkyObCTDUjg==}
     engines: {node: '>=18.0.0'}
 
   has-flag@4.0.0:
@@ -5307,7 +5307,7 @@ snapshots:
 
   graphemer@1.4.0: {}
 
-  happy-dom@16.3.0:
+  happy-dom@16.5.3:
     dependencies:
       webidl-conversions: 7.0.0
       whatwg-mimetype: 3.0.0
@@ -6425,7 +6425,7 @@ snapshots:
       '@types/node': 22.10.0
       fsevents: 2.3.3
 
-  vitest@2.1.8(@types/node@22.10.0)(happy-dom@16.3.0):
+  vitest@2.1.8(@types/node@22.10.0)(happy-dom@16.5.3):
     dependencies:
       '@vitest/expect': 2.1.8
       '@vitest/mocker': 2.1.8(vite@5.2.11(@types/node@22.10.0))
@@ -6449,7 +6449,7 @@ snapshots:
       why-is-node-running: 2.3.0
     optionalDependencies:
       '@types/node': 22.10.0
-      happy-dom: 16.3.0
+      happy-dom: 16.5.3
     transitivePeerDependencies:
       - less
       - lightningcss