diff --git a/package.json b/package.json
index 6191e8b..7b3198e 100644
--- a/package.json
+++ b/package.json
@@ -174,7 +174,7 @@
     "eslint": "9.39.2",
     "globals": "17.4.0",
     "growl": "1.10.5",
-    "happy-dom": "20.8.8",
+    "happy-dom": "20.8.9",
     "husky": "9.1.7",
     "is-ci": "4.1.0",
     "node-notifier": "10.0.1",
diff --git a/yarn.lock b/yarn.lock
index cb1b46b..1f0bce9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1993,7 +1993,7 @@ __metadata:
     globals: "npm:17.4.0"
     grapheme-splitter: "npm:1.0.4"
     growl: "npm:1.10.5"
-    happy-dom: "npm:20.8.8"
+    happy-dom: "npm:20.8.9"
     husky: "npm:9.1.7"
     is-ci: "npm:4.1.0"
     micromark-util-character: "npm:2.1.1"
@@ -6209,9 +6209,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"happy-dom@npm:20.8.8":
-  version: 20.8.8
-  resolution: "happy-dom@npm:20.8.8"
+"happy-dom@npm:20.8.9":
+  version: 20.8.9
+  resolution: "happy-dom@npm:20.8.9"
   dependencies:
     "@types/node": "npm:>=20.0.0"
     "@types/whatwg-mimetype": "npm:^3.0.2"
@@ -6219,7 +6219,7 @@ __metadata:
     entities: "npm:^7.0.1"
     whatwg-mimetype: "npm:^3.0.0"
     ws: "npm:^8.18.3"
-  checksum: 10/aa07ee59a6402c4ff8871b177e09f4711c12acc611f843915efb5eebb18be5f77cdf4dab0dde196ecd86fbfcbc7697ad039eb8998737dee19c2ac85765759fae
+  checksum: 10/81fabd8c630c2165eedd57b72f38b58e8891ff2ff543302c5bdf88860fc3b45b16decd27dabfc72739af6a927d711b04008c61b7e8090893da1fe5feba2dc80e
   languageName: node
   linkType: hard