diff --git a/scripts/serve_openai_api.py b/scripts/serve_openai_api.py
index 93a6df1..721d4e5 100644
--- a/scripts/serve_openai_api.py
+++ b/scripts/serve_openai_api.py
@@ -55,7 +55,7 @@ class ChatRequest(BaseModel):
     model: str
     messages: list
     temperature: float = 0.7
-    top_p: int = 0.92
+    top_p: float = 0.92
     max_tokens: int = 8192
     stream: bool = False