diff --git a/requirements.txt b/requirements.txt
index 7f993eb..665b6de 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2018.1.18
+certifi==2022.12.7
 chardet==3.0.4
 idna==2.6
 python-memcached==1.59