diff --git a/package-lock.json b/package-lock.json
index 88061c37..7b1ed068 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,7 +21,7 @@
         "@types/node": "^24.7.1",
         "@vitest/coverage-v8": "^3.2.4",
         "eslint": "^9.37.0",
-        "happy-dom": "^20.0.0",
+        "happy-dom": "^20.0.5",
         "typescript": "^5.9.3",
         "vite": "^7.1.9",
         "vitest": "^3.2.4"
@@ -4904,9 +4904,9 @@
       "license": "MIT"
     },
     "node_modules/happy-dom": {
-      "version": "20.0.0",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.0.0.tgz",
-      "integrity": "sha512-GkWnwIFxVGCf2raNrxImLo397RdGhLapj5cT3R2PT7FwL62Ze1DROhzmYW7+J3p9105DYMVenEejEbnq5wA37w==",
+      "version": "20.0.5",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.0.5.tgz",
+      "integrity": "sha512-AiqA0rfS7WR1kihXt9W9aA5LFLaOKzwiL+QoI7BkOQ0r21C7VHTOf4k8QNlnWYaHLhpI2tZzJPLV1lY1obDTmw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index dcb87d46..99a7fc7d 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "@types/node": "^24.7.1",
     "@vitest/coverage-v8": "^3.2.4",
     "eslint": "^9.37.0",
-    "happy-dom": "^20.0.0",
+    "happy-dom": "^20.0.5",
     "typescript": "^5.9.3",
     "vite": "^7.1.9",
     "vitest": "^3.2.4"