diff --git a/package-lock.json b/package-lock.json
index c051d101..d079a08e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,7 +18,7 @@
         "@nextcloud/vite-config": "^2.3.5",
         "@vitest/coverage-v8": "^3.1.4",
         "eslint": "^8.57.1",
-        "happy-dom": "^17.4.7",
+        "happy-dom": "^17.5.6",
         "typedoc": "^0.28.5",
         "typescript": "^5.8.3",
         "vite": "^6.3.5",
@@ -5335,9 +5335,9 @@
       "dev": true
     },
     "node_modules/happy-dom": {
-      "version": "17.4.7",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-17.4.7.tgz",
-      "integrity": "sha512-NZypxadhCiV5NT4A+Y86aQVVKQ05KDmueja3sz008uJfDRwz028wd0aTiJPwo4RQlvlz0fznkEEBBCHVNWc08g==",
+      "version": "17.5.6",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-17.5.6.tgz",
+      "integrity": "sha512-B4U6jKuiizwCJ2WP0YreQmRdeBrHKOXhpz7YUbbwdSAKfWEhdG4UfWZOZTZ5Oejs/9yJtk7xmbfp8YdVL9LVFA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index 3408dc91..6a71f1ec 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "@nextcloud/vite-config": "^2.3.5",
     "@vitest/coverage-v8": "^3.1.4",
     "eslint": "^8.57.1",
-    "happy-dom": "^17.4.7",
+    "happy-dom": "^17.5.6",
     "typedoc": "^0.28.5",
     "typescript": "^5.8.3",
     "vite": "^6.3.5",