diff --git a/requirements.txt b/requirements.txt
index 13ac8cd..f837552 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ autobahn==0.16.0
 Automat==20.2.0
 backports.ssl-match-hostname==3.5.0.1
 black==19.10b0
-certifi==2019.11.28
+certifi==2022.12.7
 cffi==1.14.0
 channels==0.17.2
 Click==7.0