diff --git a/configs/det/det_r50_vd_db.yml b/configs/det/det_r50_vd_db.yml
index 9b43cfa7..ab67786e 100644
--- a/configs/det/det_r50_vd_db.yml
+++ b/configs/det/det_r50_vd_db.yml
@@ -97,8 +97,8 @@ Train:
   loader:
     shuffle: True
     drop_last: False
-    batch_size_per_card: 4
-    num_workers: 2
+    batch_size_per_card: 16
+    num_workers: 4
 
 Eval:
   dataset: