diff --git a/package-lock.json b/package-lock.json
index 224037bc74..d0e42321ea 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -86,7 +86,7 @@
         "eslint-plugin-vue-scoped-css": "2.8.1",
         "eslint-plugin-wc": "2.2.0",
         "globals": "15.12.0",
-        "happy-dom": "15.8.3",
+        "happy-dom": "15.9.0",
         "license-checker-rseidelsohn": "4.4.2",
         "markdownlint-cli": "0.42.0",
         "postcss-html": "1.7.0",
@@ -10251,9 +10251,9 @@
       }
     },
     "node_modules/happy-dom": {
-      "version": "15.8.3",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-15.8.3.tgz",
-      "integrity": "sha512-YR9nUWN/T2bH7pPLEYMhTp4DQExPH+mC4KulJDgimCb+FY3Er0Vp6SOOcBXrNfMTri3lAk9uSZqUTG2hgZOYwg==",
+      "version": "15.9.0",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-15.9.0.tgz",
+      "integrity": "sha512-p+6ySXcpvjVW0Xetv6e8ccT2txbDpHE0RfZOEE84tQ8ESL1nlzCjvS6fZD77DkYXE540D+2N20hhFeBN6B/CJA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index c247972f6b..e48fb5ab88 100644
--- a/package.json
+++ b/package.json
@@ -85,7 +85,7 @@
     "eslint-plugin-vue-scoped-css": "2.8.1",
     "eslint-plugin-wc": "2.2.0",
     "globals": "15.12.0",
-    "happy-dom": "15.8.3",
+    "happy-dom": "15.9.0",
     "license-checker-rseidelsohn": "4.4.2",
     "markdownlint-cli": "0.42.0",
     "postcss-html": "1.7.0",