diff --git a/main.py b/main.py
index 1406decf3899d7a6f1d3d423a03dcb0278f4866e..aa86d51aa6a850498466a7a276616a9bf2eb96a6 100644
--- a/main.py
+++ b/main.py
@@ -34,7 +34,7 @@ lr_iter = cosine_lr(3e-5, 20, 500)
 net_loss = SoftmaxCrossEntropyLoss(6, 255)
 net_opt = nn.Adam(net.trainable_params(), learning_rate=lr_iter)
 
-config_ck = CheckpointConfig(save_checkpoint_steps=1, keep_checkpoint_max=10)
+config_ck = CheckpointConfig(save_checkpoint_steps=30, keep_checkpoint_max=1)
 ckpoint = ModelCheckpoint(prefix="deeplab.ckpt", config=config_ck)
 
 def cal_hist(a, b, n):