diff --git a/package-lock.json b/package-lock.json
index 946d698f..536d8247 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": "^21.0.1",
+        "happy-dom": "^21.0.4",
         "typescript": "^6.0.3",
         "vite": "^7.3.7",
         "vitest": "^5.0.1"
@@ -6304,9 +6304,9 @@
       "license": "ISC"
     },
     "node_modules/happy-dom": {
-      "version": "21.0.1",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-21.0.1.tgz",
-      "integrity": "sha512-pRBs/u9fhrncyByOl58DMex0R2uAj6ZPKWIjV5j5yNGZBqLw3P6BTRhlc0DD5b/Ht4/6JYTMuE2LJhUWRC6SGw==",
+      "version": "21.0.4",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-21.0.4.tgz",
+      "integrity": "sha512-tFm+GaLBgo6o0awHnvHaNoraVo27qJ+2tZEtZ+cIa08hXbeitrxAJajLI05hsUy/2/YTKcUjQYzHe5mCcraLBw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index a2c2d793..d74d3840 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": "^21.0.1",
+    "happy-dom": "^21.0.4",
     "typescript": "^6.0.3",
     "vite": "^7.3.7",
     "vitest": "^5.0.1"