diff --git a/src/backend/config.py b/src/backend/config.py
index afffb43..3a9d8db 100644
--- a/src/backend/config.py
+++ b/src/backend/config.py
@@ -10,7 +10,7 @@ class Settings(BaseSettings):
     DEBUG: bool = True
     API_PREFIX: str = "/api"
 
-    SILICONFLOW_API_KEY: str = os.getenv("SILICONFLOW_API_KEY", "sk-mhzuedasunrgdrxfkcxmxgaypgjnxgodvvmrzzdbqrwtkqej")
+    SILICONFLOW_API_KEY: str = os.getenv("SILICONFLOW_API_KEY", "sk-oftmyihyxitocscgjdicafzgezprwqpzzgkzsvoxrakkagmd")
     SILICONFLOW_API_URL: str = os.getenv("SILICONFLOW_API_URL", "https://api.siliconflow.cn/v1")
 
     SWITCH_USERNAME: str = os.getenv("SWITCH_USERNAME", "admin")