diff --git a/examples/simple-worker/package.json b/examples/simple-worker/package.json
index 72d0f0c..2ab92f9 100644
--- a/examples/simple-worker/package.json
+++ b/examples/simple-worker/package.json
@@ -5,7 +5,7 @@
 		"@cloudflare/vitest-pool-workers": "^0.4.5",
 		"@cloudflare/workers-types": "^4.20240620.0",
 		"typescript": "^5.4.5",
-		"vitest": "1.5.0",
+		"vitest": "4.1.0",
 		"wrangler": "^3.60.3",
 		"dotenv": "^16.4.5"
 	},