diff --git a/configs/yolov4/yolov4_cspdarknet_coco.yml b/configs/yolov4/yolov4_cspdarknet_coco.yml
index b4f7908fa0969c936cc7944a41400c931a2eaf29..41821ec2e8a6fdfac30ab31ac750310c5be5534e 100644
--- a/configs/yolov4/yolov4_cspdarknet_coco.yml
+++ b/configs/yolov4/yolov4_cspdarknet_coco.yml
@@ -134,8 +134,9 @@ TrainReader:
       downsample_ratios: [8, 16, 32]
       iou_thresh: 0.213
   batch_size: 8
-  mosaic_prob: 0.3
-  mosaic_epoch: 200
+  mixup_epoch: 250
+  mosaic_prob: 0.5
+  mosaic_epoch: 260
   shuffle: true
   drop_last: true
   worker_num: 8
diff --git a/configs/yolov4/yolov4_cspdarknet_voc.yml b/configs/yolov4/yolov4_cspdarknet_voc.yml
index cc9629a169ef29545d6e8b5f2836c71349e8d6e7..24751f86346a1322130e4b78e6e3a959da56d1ac 100644
--- a/configs/yolov4/yolov4_cspdarknet_voc.yml
+++ b/configs/yolov4/yolov4_cspdarknet_voc.yml
@@ -1,6 +1,6 @@
 architecture: YOLOv4
 use_gpu: true
-max_iters: 70000
+max_iters: 72000
 log_smooth_window: 20
 save_dir: output
 snapshot_iter: 2000
@@ -135,8 +135,8 @@ TrainReader:
       iou_thresh: 0.213
   batch_size: 8
   mixup_epoch: 250
-  mosaic_prob: 0.3
-  mosaic_epoch: 300
+  mosaic_prob: 0.5
+  mosaic_epoch: 260
   shuffle: true
   drop_last: true
   worker_num: 8