diff --git a/package.json b/package.json
index b6e94145..e5eca37e 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
   "devDependencies": {
     "@changesets/cli": "^2.27.10",
     "@types/node": "^22.10.1",
-    "happy-dom": "^15.11.7",
+    "happy-dom": "^16.0.0",
     "prettier": "^3.4.2",
     "prettier-plugin-astro": "^0.14.1",
     "prettier-plugin-tailwindcss": "^0.6.9",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ed1d6457..7822b415 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -18,8 +18,8 @@ importers:
         specifier: ^22.10.1
         version: 22.10.7
       happy-dom:
-        specifier: ^15.11.7
-        version: 15.11.7
+        specifier: ^16.0.0
+        version: 16.6.0
       prettier:
         specifier: ^3.4.2
         version: 3.4.2
@@ -40,7 +40,7 @@ importers:
         version: 5.1.4(typescript@5.7.3)(vite@5.4.11(@types/node@22.10.7))
       vitest:
         specifier: ^2.1.8
-        version: 2.1.8(@types/node@22.10.7)(happy-dom@15.11.7)(jsdom@25.0.1)
+        version: 2.1.8(@types/node@22.10.7)(happy-dom@16.6.0)(jsdom@25.0.1)
 
   examples/javascript:
     dependencies:
@@ -3317,8 +3317,8 @@ packages:
   h3@1.13.1:
     resolution: {integrity: sha512-u/z6Z4YY+ANZ05cRRfsFJadTBrNA6e3jxdU+AN5UCbZSZEUwgHiwjvUEe0k1NoQmAvQmETwr+xB5jd7mhCJuIQ==}
 
-  happy-dom@15.11.7:
-    resolution: {integrity: sha512-KyrFvnl+J9US63TEzwoiJOQzZBJY7KgBushJA8X61DMbNsH+2ONkDuLDnCnwUiPTF42tLoEmrPyoqbenVA5zrg==}
+  happy-dom@16.6.0:
+    resolution: {integrity: sha512-Zz5S9sog8a3p8XYZbO+eI1QMOAvCNnIoyrH8A8MLX+X2mJrzADTy+kdETmc4q+uD9AGAvQYGn96qBAn2RAciKw==}
     engines: {node: '>=18.0.0'}
 
   has-flag@4.0.0:
@@ -8637,9 +8637,8 @@ snapshots:
       uncrypto: 0.1.3
       unenv: 1.10.0
 
-  happy-dom@15.11.7:
+  happy-dom@16.6.0:
     dependencies:
-      entities: 4.5.0
       webidl-conversions: 7.0.0
       whatwg-mimetype: 3.0.0
 
@@ -11016,7 +11015,7 @@ snapshots:
     optionalDependencies:
       vite: 6.0.7(@types/node@22.10.7)(jiti@1.21.7)(tsx@4.19.2)(yaml@2.6.1)
 
-  vitest@2.1.8(@types/node@22.10.7)(happy-dom@15.11.7)(jsdom@25.0.1):
+  vitest@2.1.8(@types/node@22.10.7)(happy-dom@16.6.0)(jsdom@25.0.1):
     dependencies:
       '@vitest/expect': 2.1.8
       '@vitest/mocker': 2.1.8(vite@5.4.11(@types/node@22.10.7))
@@ -11040,7 +11039,7 @@ snapshots:
       why-is-node-running: 2.3.0
     optionalDependencies:
       '@types/node': 22.10.7
-      happy-dom: 15.11.7
+      happy-dom: 16.6.0
       jsdom: 25.0.1
     transitivePeerDependencies:
       - less