diff --git a/requirements.txt b/requirements.txt
index e458623..0deb29b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ astor==0.7.1
 attrs==19.1.0
 backcall==0.1.0
 bleach==3.1.0
-certifi==2019.6.16
+certifi==2022.12.7
 contextlib2==0.5.5
 cycler==0.10.0
 Cython==0.29.13