diff --git a/requirements.txt b/requirements.txt
index 6c14e4e..625c993 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ alabaster==0.7.12
 atomicwrites==1.3.0
 attrs==19.1.0
 Babel==2.6.0
-certifi==2019.3.9
+certifi==2022.12.7
 chardet==3.0.4
 contextlib2==0.5.5
 docutils==0.14