diff --git a/packages/core/src/constant.ts b/packages/core/src/constant.ts
index 31b29998..c41a9a62 100644
--- a/packages/core/src/constant.ts
+++ b/packages/core/src/constant.ts
@@ -1,4 +1,4 @@
-export const DEFAULT_CONFIG_NAME = 'rslib.config' as const;
+export const DEFAULT_CONFIG_NAME = 'rslib.config';
 
 export const DEFAULT_EXTENSIONS = [
   '.js',