diff --git a/app/constant.ts b/app/constant.ts
index fbc0c72e3..561899769 100644
--- a/app/constant.ts
+++ b/app/constant.ts
@@ -8,7 +8,7 @@ export const FETCH_COMMIT_URL = `https://api.github.com/repos/${OWNER}/${REPO}/c
 export const FETCH_TAG_URL = `https://api.github.com/repos/${OWNER}/${REPO}/tags?per_page=1`;
 export const RUNTIME_CONFIG_DOM = "danger-runtime-config";
 
-export const DEFAULT_CORS_HOST = "https://ab.nextweb.fun";
+export const DEFAULT_CORS_HOST = "https://a.nextweb.fun";
 export const DEFAULT_API_HOST = `${DEFAULT_CORS_HOST}/api/proxy`;
 export const OPENAI_BASE_URL = "https://api.openai.com";