diff --git a/configs/obj365/cascade_rcnn_dcnv2_se154_vd_fpn_gn_cas.yml b/configs/obj365/cascade_rcnn_dcnv2_se154_vd_fpn_gn_cas.yml
index b947975240ead4df1f7543d01d5a6a9d9e3df211..94b88fb653eafec550410e49d76e429eb97527a4 100644
--- a/configs/obj365/cascade_rcnn_dcnv2_se154_vd_fpn_gn_cas.yml
+++ b/configs/obj365/cascade_rcnn_dcnv2_se154_vd_fpn_gn_cas.yml
@@ -8,7 +8,7 @@ save_dir: output
 pretrain_weights: https://paddlemodels.bj.bcebos.com/object_detection/cascade_mask_rcnn_dcnv2_se154_vd_fpn_gn_coco_pretrained.tar
 weights: output/cascade_rcnn_dcnv2_se154_vd_fpn_gn_cas/model_final
 metric: COCO
-num_classes: 501
+num_classes: 366
 
 CascadeRCNN:
   backbone: SENet