diff --git a/clean_logs.py b/clean_logs.py
index abe2ec0..ca91b51 100644
--- a/clean_logs.py
+++ b/clean_logs.py
@@ -13,7 +13,7 @@ def clean_log_files(directory):
     
     # 清理超过7天的日志记录
     if os.path.exists(log_file):
-        with open(log_file, 'r+') as f:
+        with open(log_file, 'r+', encoding='utf-8') as f:
             lines = f.readlines()
             f.seek(0)
             for line in lines: