diff --git a/backend-python/utils/rwkv.py b/backend-python/utils/rwkv.py
index 7b1190f..04ee143 100644
--- a/backend-python/utils/rwkv.py
+++ b/backend-python/utils/rwkv.py
@@ -42,7 +42,7 @@ class AbstractRWKV(ABC):
         self.top_k = 0
         self.penalty_alpha_presence = 0
         self.penalty_alpha_frequency = 1
-        self.penalty_decay = 0.996
+        self.penalty_decay = 0.99
         self.global_penalty = False
         self.state_path = ""
         self.state_tuned = None