diff --git a/configs/htc_r50.py b/configs/htc_r50.py
index cda96d5d7af7fee69335564d5b1b2bade6bd4a65..984382bdce53f609587a199f39caf6f3700788dd 100644
--- a/configs/htc_r50.py
+++ b/configs/htc_r50.py
@@ -272,7 +272,7 @@ test_pipeline = [
 ]
 data = dict(
     imgs_per_gpu=4,
-    workers_per_gpu=0,
+    workers_per_gpu=8,
     train=dict(
         type=dataset_type,
         ann_file=data_root + 'train/annotations.json',