diff --git a/requirements.txt b/requirements.txt
index 49b179d..22e64e3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -60,7 +60,7 @@ mcp>=1.0.0
 
 # ── Wiki 知识库中文分词（可选，提升搜索质量）──
 # 不安装会自动回退为单字分词，不影响基本功能
-# jieba>=0.42
+jieba>=0.42