diff --git a/requirements.txt b/requirements.txt
index f2bc277..e529b26 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ appnope==0.1.0
 attrs==19.3.0
 backcall==0.1.0
 bleach==3.1.4
-certifi==2019.11.28
+certifi==2022.12.7
 chardet==3.0.4
 codecov==2.0.15
 coverage==5.0.3