diff --git a/requirements-py27.txt b/requirements-py27.txt
index 4c1700a..35fadf4 100644
--- a/requirements-py27.txt
+++ b/requirements-py27.txt
@@ -3,7 +3,7 @@ backports-abc==0.5
 backports.functools-lru-cache==1.6.6
 backports.shutil-get-terminal-size==1.0.0
 bleach==3.3.1
-certifi==2021.10.8
+certifi==2023.7.22
 chardet==4.0.0
 configparser==4.0.2
 contextlib2==0.6.0.post1