diff --git a/requirements_dev.txt b/requirements_dev.txt
index 4f7941e..cfecce4 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -6,7 +6,7 @@ Babel==2.8.0
 biothings-client==0.2.1
 bleach==3.1.5
 bump2version==1.0.0
-certifi==2020.4.5.2
+certifi==2022.12.7
 cffi==1.14.0
 chardet==3.0.4
 click==7.1.2