diff --git a/package.json b/package.json
index 3ba5b31..28a314f 100644
--- a/package.json
+++ b/package.json
@@ -169,7 +169,7 @@
     "editorconfig": "3.0.1",
     "eslint": "9.37.0",
     "growl": "1.10.5",
-    "happy-dom": "20.0.8",
+    "happy-dom": "20.0.9",
     "husky": "9.1.7",
     "is-ci": "4.1.0",
     "node-notifier": "10.0.1",
diff --git a/yarn.lock b/yarn.lock
index befc378..ef5977b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1692,7 +1692,7 @@ __metadata:
     editorconfig: "npm:3.0.1"
     eslint: "npm:9.37.0"
     growl: "npm:1.10.5"
-    happy-dom: "npm:20.0.8"
+    happy-dom: "npm:20.0.9"
     husky: "npm:9.1.7"
     is-ci: "npm:4.1.0"
     node-inspect-extracted: "npm:3.2.2"
@@ -5892,14 +5892,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"happy-dom@npm:20.0.8":
-  version: 20.0.8
-  resolution: "happy-dom@npm:20.0.8"
+"happy-dom@npm:20.0.9":
+  version: 20.0.9
+  resolution: "happy-dom@npm:20.0.9"
   dependencies:
     "@types/node": "npm:^20.0.0"
     "@types/whatwg-mimetype": "npm:^3.0.2"
     whatwg-mimetype: "npm:^3.0.0"
-  checksum: 10/d16e9c2a04155ac666b892e382aba4bf48783937f6e877e8d7ede90b8e2148d76c5a6965757f928d35a2ebe51698fa3debd0ec110339c8eb395dc81d67dc5406
+  checksum: 10/4bc17e3cffa9c47f974ce7b98c2ec0aac457d5b454cdd6d5610e3b0e019329c9d5ee99f744885b3190a262041a5a5929af291bbab2fc6f779e93962aa76b573f
   languageName: node
   linkType: hard