diff --git a/requirements_dev.txt b/requirements_dev.txt
index a1cee13..be702a7 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,7 +1,7 @@
 atomicwrites==1.3.0
 attrs==19.1.0
 bleach==3.0.2
-certifi==2018.11.29
+certifi==2022.12.7
 cffi==1.11.5
 chardet==3.0.4
 cmarkgfm==0.4.2