diff --git a/package-lock.json b/package-lock.json
index 4f45479..b512b13 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -37,7 +37,7 @@
         "@vue/test-utils": "^2.5.0",
         "eslint": "^10.13.0",
         "gettext-parser": "^9.1.1",
-        "happy-dom": "^20.14.5",
+        "happy-dom": "^21.0.4",
         "sass-embedded": "^1.105.2",
         "typedoc": "^0.28.20",
         "typescript": "^6.0.3",
@@ -5786,9 +5786,9 @@
       "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": "21.0.4",
+      "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 485fb25..d527307 100644
--- a/package.json
+++ b/package.json
@@ -81,7 +81,7 @@
     "@vue/test-utils": "^2.5.0",
     "eslint": "^10.13.0",
     "gettext-parser": "^9.1.1",
-    "happy-dom": "^20.14.5",
+    "happy-dom": "^21.0.4",
     "sass-embedded": "^1.105.2",
     "typedoc": "^0.28.20",
     "typescript": "^6.0.3",