diff --git a/pkg/common/db/unrelation/mongo.go b/pkg/common/db/unrelation/mongo.go
index 583789b73..b8184d767 100644
--- a/pkg/common/db/unrelation/mongo.go
+++ b/pkg/common/db/unrelation/mongo.go
@@ -103,9 +103,9 @@ func buildMongoURI() string {
 		maxPoolSize = fmt.Sprint(config.Config.Mongo.MaxPoolSize)
 	}
 
-	uriFormat := "mongodb://%s/%s?maxPoolSize=%s&authSource=admin"
+	uriFormat := "mongodb://%s/%s?maxPoolSize=%s"
 	if username != "" && password != "" {
-		uriFormat = "mongodb://%s:%s@%s/%s?maxPoolSize=%s&authSource=admin"
+		uriFormat = "mongodb://%s:%s@%s/%s?maxPoolSize=%s"
 		return fmt.Sprintf(uriFormat, username, password, address, database, maxPoolSize)
 	}
 	return fmt.Sprintf(uriFormat, address, database, maxPoolSize)
diff --git a/tools/component/component.go b/tools/component/component.go
index e75c41365..b704ce845 100644
--- a/tools/component/component.go
+++ b/tools/component/component.go
@@ -171,10 +171,10 @@ func buildMongoURI() string {
 	mongodbHosts := strings.Join(config.Config.Mongo.Address, ",")
 
 	if username != "" && password != "" {
-		return fmt.Sprintf("mongodb://%s:%s@%s/%s?maxPoolSize=%d&authSource=admin",
+		return fmt.Sprintf("mongodb://%s:%s@%s/%s?maxPoolSize=%d",
 			username, password, mongodbHosts, database, maxPoolSize)
 	}
-	return fmt.Sprintf("mongodb://%s/%s?maxPoolSize=%d&authSource=admin",
+	return fmt.Sprintf("mongodb://%s/%s?maxPoolSize=%d",
 		mongodbHosts, database, maxPoolSize)
 }