diff --git a/package-lock.json b/package-lock.json
index bb05b1c..eead69c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,7 +26,7 @@
         "eslint": "^8.57.0",
         "eslint-config-prettier": "^9.1.0",
         "eslint-plugin-prettier": "^5.2.1",
-        "happy-dom": "^15.10.2",
+        "happy-dom": "^20.0.2",
         "prettier": "^3.3.3",
         "sass": "^1.70.0",
         "vitest": "^1.2.0"
@@ -5427,6 +5427,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/whatwg-mimetype": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/@types/whatwg-mimetype/-/whatwg-mimetype-3.0.2.tgz",
+      "integrity": "sha512-c2AKvDT8ToxLIOUlN51gTiHXflsfIFisS4pO7pDPoKouJCESkhZnEy623gwP9laCy5lnLDAw1vAzu2vM2YLOrA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/yauzl": {
       "version": "2.10.3",
       "resolved": "https://registry.npmjs.org/@types/yauzl/-/yauzl-2.10.3.tgz",
@@ -10323,18 +10330,28 @@
       "license": "MIT"
     },
     "node_modules/happy-dom": {
-      "version": "15.11.7",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-15.11.7.tgz",
-      "integrity": "sha512-KyrFvnl+J9US63TEzwoiJOQzZBJY7KgBushJA8X61DMbNsH+2ONkDuLDnCnwUiPTF42tLoEmrPyoqbenVA5zrg==",
+      "version": "20.0.2",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.0.2.tgz",
+      "integrity": "sha512-pYOyu624+6HDbY+qkjILpQGnpvZOusItCk+rvF5/V+6NkcgTKnbOldpIy22tBnxoaLtlM9nXgoqAcW29/B7CIw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "entities": "^4.5.0",
-        "webidl-conversions": "^7.0.0",
+        "@types/node": "^20.0.0",
+        "@types/whatwg-mimetype": "^3.0.2",
         "whatwg-mimetype": "^3.0.0"
       },
       "engines": {
-        "node": ">=18.0.0"
+        "node": ">=20.0.0"
+      }
+    },
+    "node_modules/happy-dom/node_modules/@types/node": {
+      "version": "20.19.21",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.19.21.tgz",
+      "integrity": "sha512-CsGG2P3I5y48RPMfprQGfy4JPRZ6csfC3ltBZSRItG3ngggmNY/qs2uZKp4p9VbrpqNNSMzUZNFZKzgOGnd/VA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "undici-types": "~6.21.0"
       }
     },
     "node_modules/has-bigints": {
@@ -18333,16 +18350,6 @@
         "node": ">= 8"
       }
     },
-    "node_modules/webidl-conversions": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-7.0.0.tgz",
-      "integrity": "sha512-VwddBukDzu71offAQR975unBIGqfKZpM+8ZX6ySk8nYhVoo5CYaZyzt3YBvYtRtO+aoGlqxPg/B87NGVZ/fu6g==",
-      "dev": true,
-      "license": "BSD-2-Clause",
-      "engines": {
-        "node": ">=12"
-      }
-    },
     "node_modules/webpack-virtual-modules": {
       "version": "0.6.2",
       "resolved": "https://registry.npmjs.org/webpack-virtual-modules/-/webpack-virtual-modules-0.6.2.tgz",
diff --git a/package.json b/package.json
index b8ba801..0f344b0 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "eslint": "^8.57.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-prettier": "^5.2.1",
-    "happy-dom": "^15.10.2",
+    "happy-dom": "^20.0.2",
     "prettier": "^3.3.3",
     "sass": "^1.70.0",
     "vitest": "^1.2.0"