diff --git a/deployments/Readme.md b/deployments/Readme.md
index eccc234db..ca671f8fe 100644
--- a/deployments/Readme.md
+++ b/deployments/Readme.md
@@ -103,11 +103,11 @@ spec:
 
 So, you need following configurations to set secret:
 
-- MONGODB_PASSWORD
-- MINIO_SECRETACCESSKEY
-- REDIS_PASSWORD
-- MINIO_SECRETACCESSKEY
-- MINIO_ACCESSKEYID
+- `MONGODB_USERNAME`
+- `MONGODB_PASSWORD`
+- `REDIS_PASSWORD`
+- `MINIO_ACCESSKEYID`
+- `MINIO_SECRETACCESSKEY`
 
 ### Apply all config and dependencies
 
diff --git a/deployments/deploy/openim-api-deployment.yml b/deployments/deploy/openim-api-deployment.yml
index cb1a68075..7a7e8aca0 100644
--- a/deployments/deploy/openim-api-deployment.yml
+++ b/deployments/deploy/openim-api-deployment.yml
@@ -30,12 +30,6 @@ spec:
                   name: mongo-secret
                   key: mongo_openim_password
 
-            - name: IMENV_MONGODB_USERNAME
-              valueFrom:
-                secretKeyRef:
-                  name: mongo-secret
-                  key: mongo_openim_username
-
           volumeMounts:
             - name: openim-config
               mountPath: "/config"