diff --git a/package-lock.json b/package-lock.json
index 70de818..90c3542 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,7 +18,7 @@
         "@nextcloud/vite-config": "^2.2.2",
         "@vitest/coverage-v8": "^2.1.4",
         "eslint": "^8.57.1",
-        "happy-dom": "^14.12.3",
+        "happy-dom": "^15.11.0",
         "typedoc": "^0.26.11",
         "typescript": "^5.6.3",
         "vite": "^5.4.10",
@@ -5075,9 +5075,9 @@
       "dev": true
     },
     "node_modules/happy-dom": {
-      "version": "14.12.3",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-14.12.3.tgz",
-      "integrity": "sha512-vsYlEs3E9gLwA1Hp+w3qzu+RUDFf4VTT8cyKqVICoZ2k7WM++Qyd2LwzyTi5bqMJFiIC/vNpTDYuxdreENRK/g==",
+      "version": "15.11.0",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-15.11.0.tgz",
+      "integrity": "sha512-/zyxHbXriYJ8b9Urh43ILk/jd9tC07djURnJuAimJ3tJCOLOzOUp7dEHDwJOZyzROlrrooUhr/0INZIDBj1Bjw==",
       "dev": true,
       "dependencies": {
         "entities": "^4.5.0",
@@ -5085,7 +5085,7 @@
         "whatwg-mimetype": "^3.0.0"
       },
       "engines": {
-        "node": ">=16.0.0"
+        "node": ">=18.0.0"
       }
     },
     "node_modules/has-bigints": {
diff --git a/package.json b/package.json
index a511ded..93c016d 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "@nextcloud/vite-config": "^2.2.2",
     "@vitest/coverage-v8": "^2.1.4",
     "eslint": "^8.57.1",
-    "happy-dom": "^14.12.3",
+    "happy-dom": "^15.11.0",
     "typedoc": "^0.26.11",
     "typescript": "^5.6.3",
     "vite": "^5.4.10",