diff --git a/src/main/scala/io/izzel/taboolib/module/db/source/DBSource.java b/src/main/scala/io/izzel/taboolib/module/db/source/DBSource.java
index 58b8c68..2f1f05b 100644
--- a/src/main/scala/io/izzel/taboolib/module/db/source/DBSource.java
+++ b/src/main/scala/io/izzel/taboolib/module/db/source/DBSource.java
@@ -19,9 +19,9 @@ import java.util.concurrent.ConcurrentHashMap;
  */
 public class DBSource {
 
-    @TInject("datasource.yml")
+    @TInject(value = "datasource.yml", migrate = true)
     private static TConfig settings;
-    private static ConcurrentHashMap<IHost, DBSourceData> dataSource = new ConcurrentHashMap<>();
+    private static final ConcurrentHashMap<IHost, DBSourceData> dataSource = new ConcurrentHashMap<>();
 
     public static DataSource create(IHost host) {
         return create(host, null);