diff --git a/package-lock.json b/package-lock.json
index a3ee3b96..8a1c10a6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -34,7 +34,7 @@
         "@vue/test-utils": "^1.3.6",
         "@vue/tsconfig": "^0.5.1",
         "eslint-plugin-chai-friendly": "^1.0.1",
-        "happy-dom": "^17.1.8",
+        "happy-dom": "^17.4.0",
         "typescript": "^5.8.2",
         "vite": "^6.2.0",
         "vitest": "^3.0.2"
@@ -6669,9 +6669,9 @@
       "peer": true
     },
     "node_modules/happy-dom": {
-      "version": "17.1.8",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-17.1.8.tgz",
-      "integrity": "sha512-Yxbq/FG79z1rhAf/iB6YM8wO2JB/JDQBy99RiLSs+2siEAi5J05x9eW1nnASHZJbpldjJE2KuFLsLZ+AzX/IxA==",
+      "version": "17.4.0",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-17.4.0.tgz",
+      "integrity": "sha512-LN2BIuvdFZ8snmF6LtQB2vYBzRmgCx+uqlFX9JpKVRHQ44NODNnOchB4ZW8404djHhdbQgEHRAkXCZ0zGOyzew==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index 25666d06..09390102 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "@vue/test-utils": "^1.3.6",
     "@vue/tsconfig": "^0.5.1",
     "eslint-plugin-chai-friendly": "^1.0.1",
-    "happy-dom": "^17.1.8",
+    "happy-dom": "^17.4.0",
     "typescript": "^5.8.2",
     "vite": "^6.2.0",
     "vitest": "^3.0.2"