diff --git a/package-lock.json b/package-lock.json
index d640c0b7..347f12bc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -31,7 +31,7 @@
         "@vue/test-utils": "^2.5.1",
         "@vue/tsconfig": "^0.9.1",
         "browserslist": "^4.29.3",
-        "happy-dom": "^20.14.5",
+        "happy-dom": "^21.0.1",
         "typescript": "^6.0.3",
         "vite": "^7.3.7",
         "vitest": "^5.0.1"
@@ -6304,9 +6304,9 @@
       "license": "ISC"
     },
     "node_modules/happy-dom": {
-      "version": "20.14.5",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.14.5.tgz",
-      "integrity": "sha512-x/RzkpWO40bTjIoT30iQtt64FLLmH/iRcUCN2X//bLx7H3ifkdfPXyqsro/OYtqzIAhiLMMA7mmiOR9C3NOKjQ==",
+      "version": "21.0.1",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-21.0.1.tgz",
+      "integrity": "sha512-pRBs/u9fhrncyByOl58DMex0R2uAj6ZPKWIjV5j5yNGZBqLw3P6BTRhlc0DD5b/Ht4/6JYTMuE2LJhUWRC6SGw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index 32c82ec3..6334e46a 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "@vue/test-utils": "^2.5.1",
     "@vue/tsconfig": "^0.9.1",
     "browserslist": "^4.29.3",
-    "happy-dom": "^20.14.5",
+    "happy-dom": "^21.0.1",
     "typescript": "^6.0.3",
     "vite": "^7.3.7",
     "vitest": "^5.0.1"