diff --git a/package-lock.json b/package-lock.json
index f87223f256..785cfd3163 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -69,7 +69,7 @@
         "@vitest/coverage-v8": "^4.0.18",
         "@vue/test-utils": "^2.4.6",
         "@vue/tsconfig": "^0.9.0",
-        "happy-dom": "^20.7.0",
+        "happy-dom": "^20.8.3",
         "mailpit-api": "^1.7.2",
         "openapi-typescript": "^7.13.0",
         "typescript": "^5.9.3",
@@ -8492,10 +8492,11 @@
       "peer": true
     },
     "node_modules/happy-dom": {
-      "version": "20.7.0",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.7.0.tgz",
-      "integrity": "sha512-hR/uLYQdngTyEfxnOoa+e6KTcfBFyc1hgFj/Cc144A5JJUuHFYqIEBDcD4FeGqUeKLRZqJ9eN9u7/GDjYEgS1g==",
+      "version": "20.8.3",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.8.3.tgz",
+      "integrity": "sha512-lMHQRRwIPyJ70HV0kkFT7jH/gXzSI7yDkQFe07E2flwmNDFoWUTRMKpW2sglsnpeA7b6S2TJPp98EbQxai8eaQ==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "@types/node": ">=20.0.0",
         "@types/whatwg-mimetype": "^3.0.2",
diff --git a/package.json b/package.json
index c03a135636..7f4c029d19 100644
--- a/package.json
+++ b/package.json
@@ -90,7 +90,7 @@
     "@vitest/coverage-v8": "^4.0.18",
     "@vue/test-utils": "^2.4.6",
     "@vue/tsconfig": "^0.9.0",
-    "happy-dom": "^20.7.0",
+    "happy-dom": "^20.8.3",
     "mailpit-api": "^1.7.2",
     "openapi-typescript": "^7.13.0",
     "typescript": "^5.9.3",