diff --git a/package-lock.json b/package-lock.json
index e8e84f8e..c2b252d6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -33,7 +33,7 @@
         "@vue/test-utils": "^1.3.6",
         "@vue/tsconfig": "^0.5.1",
         "eslint-plugin-chai-friendly": "^1.1.0",
-        "happy-dom": "^17.6.3",
+        "happy-dom": "^18.0.1",
         "typescript": "^5.8.3",
         "vite": "^6.3.5",
         "vitest": "^3.0.2"
@@ -2592,8 +2592,6 @@
       "resolved": "https://registry.npmjs.org/@types/node/-/node-20.14.12.tgz",
       "integrity": "sha512-r7wNXakLeSsGT0H1AU863vS2wa5wBOK4bWMjZz2wj+8nBx+m5PeIn0k8AloSLpRuiwdRQZwarZqHE4FNArPuJQ==",
       "dev": true,
-      "optional": true,
-      "peer": true,
       "dependencies": {
         "undici-types": "~5.26.4"
       }
@@ -2654,6 +2652,13 @@
       "resolved": "https://registry.npmjs.org/@types/web-bluetooth/-/web-bluetooth-0.0.20.tgz",
       "integrity": "sha512-g9gZnnXVq7gM7v3tJCWV/qw7w+KeOlSHAhgF9RytFyifW6AF61hdT2ucrYhPq9hLs5JIryeupHV3qGk95dH9ow=="
     },
+    "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/@typescript-eslint/eslint-plugin": {
       "version": "7.9.0",
       "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-7.9.0.tgz",
@@ -6666,13 +6671,14 @@
       "peer": true
     },
     "node_modules/happy-dom": {
-      "version": "17.6.3",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-17.6.3.tgz",
-      "integrity": "sha512-UVIHeVhxmxedbWPCfgS55Jg2rDfwf2BCKeylcPSqazLz5w3Kri7Q4xdBJubsr/+VUzFLh0VjIvh13RaDA2/Xug==",
+      "version": "18.0.1",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-18.0.1.tgz",
+      "integrity": "sha512-qn+rKOW7KWpVTtgIUi6RVmTBZJSe2k0Db0vh1f7CWrWclkkc7/Q+FrOfkZIb2eiErLyqu5AXEzE7XthO9JVxRA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "webidl-conversions": "^7.0.0",
+        "@types/node": "^20.0.0",
+        "@types/whatwg-mimetype": "^3.0.2",
         "whatwg-mimetype": "^3.0.0"
       },
       "engines": {
@@ -11247,9 +11253,7 @@
       "version": "5.26.5",
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
       "integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==",
-      "dev": true,
-      "optional": true,
-      "peer": true
+      "dev": true
     },
     "node_modules/unified": {
       "version": "10.1.2",
@@ -12081,15 +12085,6 @@
         "url": "https://github.com/sponsors/isaacs"
       }
     },
-    "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,
-      "engines": {
-        "node": ">=12"
-      }
-    },
     "node_modules/whatwg-mimetype": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-3.0.0.tgz",
diff --git a/package.json b/package.json
index e0c65f94..cb3279c7 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "@vue/test-utils": "^1.3.6",
     "@vue/tsconfig": "^0.5.1",
     "eslint-plugin-chai-friendly": "^1.1.0",
-    "happy-dom": "^17.6.3",
+    "happy-dom": "^18.0.1",
     "typescript": "^5.8.3",
     "vite": "^6.3.5",
     "vitest": "^3.0.2"