diff --git a/package-lock.json b/package-lock.json
index 8770a95337..64dee8169c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -68,7 +68,7 @@
         "@vitest/coverage-v8": "^4.1.3",
         "@vue/test-utils": "^2.4.6",
         "@vue/tsconfig": "^0.9.1",
-        "happy-dom": "^20.8.9",
+        "happy-dom": "^20.9.0",
         "mailpit-api": "^1.8.1",
         "openapi-typescript": "^7.13.0",
         "typescript": "^5.9.3",
@@ -9107,9 +9107,9 @@
       "peer": true
     },
     "node_modules/happy-dom": {
-      "version": "20.8.9",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.8.9.tgz",
-      "integrity": "sha512-Tz23LR9T9jOGVZm2x1EPdXqwA37G/owYMxRwU0E4miurAtFsPMQ1d2Jc2okUaSjZqAFz2oEn3FLXC5a0a+siyA==",
+      "version": "20.9.0",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.9.0.tgz",
+      "integrity": "sha512-GZZ9mKe8r646NUAf/zemnGbjYh4Bt8/MqASJY+pSm5ZDtc3YQox+4gsLI7yi1hba6o+eCsGxpHn5+iEVn31/FQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index bd2a34642f..e6491af7d1 100644
--- a/package.json
+++ b/package.json
@@ -89,7 +89,7 @@
     "@vitest/coverage-v8": "^4.1.3",
     "@vue/test-utils": "^2.4.6",
     "@vue/tsconfig": "^0.9.1",
-    "happy-dom": "^20.8.9",
+    "happy-dom": "^20.9.0",
     "mailpit-api": "^1.8.1",
     "openapi-typescript": "^7.13.0",
     "typescript": "^5.9.3",