diff --git a/plugins/database/postgresql/postgresql.go b/plugins/database/postgresql/postgresql.go
index 5781b6c3d1..e90e0f8cbc 100644
--- a/plugins/database/postgresql/postgresql.go
+++ b/plugins/database/postgresql/postgresql.go
@@ -22,8 +22,8 @@ func New() (interface{}, error) {
 	connProducer.Type = postgreSQLTypeName
 
 	credsProducer := &credsutil.SQLCredentialsProducer{
-		DisplayNameLen: 4,
-		UsernameLen:    16,
+		DisplayNameLen: 10,
+		UsernameLen:    63,
 	}
 
 	dbType := &PostgreSQL{