diff --git a/convlab/policy/ppo/config.json b/convlab/policy/ppo/config.json
index 19cf280748ca6cb554eaf947594ccea9732a393c..35d9af0244356f54e559a3fa84ca747499ca910f 100755
--- a/convlab/policy/ppo/config.json
+++ b/convlab/policy/ppo/config.json
@@ -3,7 +3,7 @@
 	"gamma": 0.99,
 	"epsilon": 0.2,
 	"tau": 0.95,
-	"policy_lr": 0.00001,
+	"policy_lr": 0.0001,
 	"value_lr": 0.00005,
 	"save_dir": "save",
 	"log_dir": "log",
@@ -17,4 +17,4 @@
 	"lr_supervised": 0.001,
 	"weight_decay": 0.00001,
 	"epoch": 100
-}
+}
\ No newline at end of file