diff --git a/package.json b/package.json
index 7d9db1c..f1f71cc 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "puppeteer": "^22.4.1"
   },
   "devDependencies": {
-    "@happy-dom/jest-environment": "^12.0.1",
+    "@happy-dom/jest-environment": "^13.7.3",
     "@testing-library/jest-dom": "^6.0.0",
     "jest": "^29.6.2",
     "prettier": "^3.0.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 302327d..b257679 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -38,8 +38,8 @@ dependencies:
 
 devDependencies:
   '@happy-dom/jest-environment':
-    specifier: ^12.0.1
-    version: 12.10.3
+    specifier: ^13.7.3
+    version: 13.7.3
   '@testing-library/jest-dom':
     specifier: ^6.0.0
     version: 6.4.2(jest@29.7.0)
@@ -410,13 +410,14 @@ packages:
     requiresBuild: true
     dev: false
 
-  /@happy-dom/jest-environment@12.10.3:
-    resolution: {integrity: sha512-6cLNSLhSAE4Pj7QEEHU1fEeJFczSA4TT9WmoMQNZ0Lpb6RTBYPDfil56nD/UqyPy5vq3N2n6BN442KsjhHn7uw==}
+  /@happy-dom/jest-environment@13.7.3:
+    resolution: {integrity: sha512-aQFxnkgxfJfLUUTLd2OzMX56Cf/nvqXlf2nH1sL0R4zETq70RvihPOjYfGbxRX1mJxgIHCRDTXsu1ppuxMsbkw==}
+    engines: {node: '>=16.0.0'}
     dependencies:
       '@jest/environment': 29.7.0
       '@jest/fake-timers': 29.7.0
       '@jest/types': 29.6.3
-      happy-dom: 12.10.3
+      happy-dom: 13.7.3
       jest-mock: 29.7.0
       jest-util: 29.7.0
     dev: true
@@ -2052,14 +2053,12 @@ packages:
   /graceful-fs@4.2.11:
     resolution: {integrity: sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==}
 
-  /happy-dom@12.10.3:
-    resolution: {integrity: sha512-JzUXOh0wdNGY54oKng5hliuBkq/+aT1V3YpTM+lrN/GoLQTANZsMaIvmHiHe612rauHvPJnDZkZ+5GZR++1Abg==}
+  /happy-dom@13.7.3:
+    resolution: {integrity: sha512-xMwilTgO34BGEX0TAoM369wwwAy0fK/Jq6BGaRYhSjxLtfQ740nqxHfjFyBqPjCVmKiPUS4npBnMrGLii7eCOg==}
+    engines: {node: '>=16.0.0'}
     dependencies:
-      css.escape: 1.5.1
       entities: 4.5.0
-      iconv-lite: 0.6.3
       webidl-conversions: 7.0.0
-      whatwg-encoding: 2.0.0
       whatwg-mimetype: 3.0.0
     dev: true
 
@@ -2157,6 +2156,7 @@ packages:
     engines: {node: '>=0.10.0'}
     dependencies:
       safer-buffer: 2.1.2
+    dev: false
 
   /ieee754@1.2.1:
     resolution: {integrity: sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==}
@@ -3566,6 +3566,7 @@ packages:
 
   /safer-buffer@2.1.2:
     resolution: {integrity: sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==}
+    dev: false
 
   /semver@6.3.1:
     resolution: {integrity: sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==}
@@ -3954,13 +3955,6 @@ packages:
     engines: {node: '>=12'}
     dev: true
 
-  /whatwg-encoding@2.0.0:
-    resolution: {integrity: sha512-p41ogyeMUrw3jWclHWTQg1k05DSVXPLcVxRTYsXUk+ZooOCZLcoYgPZ/HL/D/N+uQPOtcp1me1WhBEaX02mhWg==}
-    engines: {node: '>=12'}
-    dependencies:
-      iconv-lite: 0.6.3
-    dev: true
-
   /whatwg-mimetype@3.0.0:
     resolution: {integrity: sha512-nt+N2dzIutVRxARx1nghPKGv1xHikU7HKdfafKkLNLindmPU/ch3U31NOCGGA/dmPcmb1VlofO0vnKAcsm0o/Q==}
     engines: {node: '>=12'}
diff --git a/test/kitchensink.test.js b/test/kitchensink.test.js
index 2f6bd0d..c4739df 100644
--- a/test/kitchensink.test.js
+++ b/test/kitchensink.test.js
@@ -1,4 +1,3 @@
-const { Window } = require('happy-dom');
 const supertest = require('supertest');
 const createApp = require('../src/app');