diff --git a/backend/requirements.txt b/backend/requirements.txt
index e88ef46..baa91db 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -22,4 +22,4 @@ python-dotenv==1.0.0
 # 向量数据库和Embedding (长期记忆系统)
 chromadb>=0.5.0
 sentence-transformers>=2.3.1
-numpy==1。26.4
\ No newline at end of file
+numpy==1.26.4
\ No newline at end of file