diff --git a/package-lock.json b/package-lock.json
index e2b976f6..f7cfb48d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -31,7 +31,7 @@
         "@vue/test-utils": "^2.4.6",
         "@vue/tsconfig": "^0.9.1",
         "browserslist": "^4.28.2",
-        "happy-dom": "^20.8.9",
+        "happy-dom": "^20.9.0",
         "typescript": "^6.0.3",
         "vite": "^7.3.1",
         "vitest": "^4.1.4"
@@ -6192,9 +6192,9 @@
       "license": "ISC"
     },
     "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 90ea0f41..ec2d8226 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "@vue/test-utils": "^2.4.6",
     "@vue/tsconfig": "^0.9.1",
     "browserslist": "^4.28.2",
-    "happy-dom": "^20.8.9",
+    "happy-dom": "^20.9.0",
     "typescript": "^6.0.3",
     "vite": "^7.3.1",
     "vitest": "^4.1.4"