diff --git a/package.json b/package.json
index 0ed6371..c1bba6a 100644
--- a/package.json
+++ b/package.json
@@ -86,7 +86,7 @@
     "eslint-import-resolver-typescript": "^3.6.1",
     "eslint-plugin-import": "^2.29.1",
     "form-atoms": "^3.2.4",
-    "happy-dom": "^13.8.4",
+    "happy-dom": "^14.3.1",
     "jotai": "2.7.1",
     "jotai-devtools": "0.8.0",
     "jotai-effect": "0.6.0",
diff --git a/yarn.lock b/yarn.lock
index 742837a..2804988 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2912,7 +2912,7 @@ __metadata:
     eslint-import-resolver-typescript: "npm:^3.6.1"
     eslint-plugin-import: "npm:^2.29.1"
     form-atoms: "npm:^3.2.4"
-    happy-dom: "npm:^13.8.4"
+    happy-dom: "npm:^14.3.1"
     jotai: "npm:2.7.1"
     jotai-devtools: "npm:0.8.0"
     jotai-effect: "npm:0.6.0"
@@ -9579,14 +9579,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"happy-dom@npm:^13.8.4":
-  version: 13.8.4
-  resolution: "happy-dom@npm:13.8.4"
+"happy-dom@npm:^14.3.1":
+  version: 14.3.1
+  resolution: "happy-dom@npm:14.3.1"
   dependencies:
     entities: "npm:^4.5.0"
     webidl-conversions: "npm:^7.0.0"
     whatwg-mimetype: "npm:^3.0.0"
-  checksum: e28662be0e67c21c85a17e562dceb69f676244e5f5c9a53257541d9b5a3a8608acd8b3ce25c3dbfcff2d69d6be4356072b446d46538eb98bfc6be0cc26b8097e
+  checksum: 1d95780ec0f6ea47c35dacf3ed588eac1d6563a41d913e26ddffd3d9aee52e421b60f140768e4cfbf492f492694a75930196b16aa674072d22bc42288fe5b643
   languageName: node
   linkType: hard