diff --git a/ChineseSegmentation/requirements.txt b/ChineseSegmentation/requirements.txt
index a3c8279..e29b27f 100644
--- a/ChineseSegmentation/requirements.txt
+++ b/ChineseSegmentation/requirements.txt
@@ -9,7 +9,7 @@ bleach==1.5.0
 boto==2.47.0
 bs4==0.0.1
 bz2file==0.98
-certifi==2017.4.17
+certifi==2022.12.7
 cffi==1.10.0
 chardet==3.0.4
 cryptography==2.3