diff --git a/utils/compress_chat_data.py b/utils/compress_chat_data.py
index e6c5cc4..e2567f7 100644
--- a/utils/compress_chat_data.py
+++ b/utils/compress_chat_data.py
@@ -11,7 +11,7 @@ def compress_chat_data(chat_data_str, time_threshold=5):
     :return: 压缩后的聊天数据的长字符串
     """
     # 如果字符串长度超过30000，则去除前面的聊天记录
-    if len(chat_data_str) > 30000:
+    if len(chat_data_str) > 40000:
         lines = chat_data_str.splitlines()
         total_length = 0
         cut_index = 0
@@ -20,7 +20,7 @@ def compress_chat_data(chat_data_str, time_threshold=5):
         for i in range(len(lines) - 1, -1, -1):
             line_length = len(lines[i]) + 1  # +1 是为了计入换行符
             total_length += line_length
-            if total_length > 30000:
+            if total_length > 40000:
                 cut_index = i + 1  # 保留这个索引之后的行
                 break