diff --git a/config/config.yaml b/config/config.yaml
index 3657a03ca..0f73f6f61 100644
--- a/config/config.yaml
+++ b/config/config.yaml
@@ -70,12 +70,12 @@ credential:
     secretID: AKIDGNYVChzIQinu7QEgtNp0hnNgqcV8vZTC
     secretKey: kz15vW83qM6dBUWIq681eBZA0c0vlIbe
   aliyun:
-    accessKeyId: LTAI5t6mkas7MHWjESnvYuSS
-    accessKeySecret: lM02hE0NwO8RLXzQM7YETGaxrkx2qH
-    roleArn: "acs:ram::1475303086170749:role/openimoss"
-    regionId: cn-beijing
-    region: oss-cn-beijing
-    bucket: pandagaoxin-im
+    accessKeyId:
+    accessKeySecret:
+    roleArn:
+    regionId:
+    region:
+    bucket:
 
 rpcport:
   openImUserPort: [ 10100 ]