diff --git a/requirements.txt b/requirements.txt
index b4c653a..f86557c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ backports-abc==0.4
 backports.ssl-match-hostname==3.5.0.1
 billiard==3.3.0.23
 celery==3.1.23
-certifi==2016.2.28
+certifi==2022.12.7
 Django==1.9.7
 flower==0.9.1
 funcsigs==1.0.2