diff --git a/configs/model_config.py b/configs/model_config.py
index 03cafcf..e054444 100644
--- a/configs/model_config.py
+++ b/configs/model_config.py
@@ -69,7 +69,7 @@ LLM_HISTORY_LEN = 3
 # return top-k text chunk from vector store
 VECTOR_SEARCH_TOP_K = 5
 
-# 知识检索内容相关度 Score, 数值范围0-1000，如果为0，则不生效，经测试设置为小于500时，匹配结果更精准
+# 知识检索内容相关度 Score, 数值范围约为0-1100，如果为0，则不生效，经测试设置为小于500时，匹配结果更精准
 VECTOR_SEARCH_SCORE_THRESHOLD = 0
 
 NLTK_DATA_PATH = os.path.join(os.path.dirname(os.path.dirname(__file__)), "nltk_data")