diff --git a/docs/requirements.docs.txt b/docs/requirements.docs.txt
index 2b0f54d..60cf4df 100644
--- a/docs/requirements.docs.txt
+++ b/docs/requirements.docs.txt
@@ -3,7 +3,7 @@ argh==0.26.2
 Babel==2.3.4
 backports-abc==0.4
 backports.ssl-match-hostname==3.5.0.1
-certifi==2016.2.28
+certifi==2022.12.7
 docutils==0.12
 imagesize==0.7.1
 Jinja2==2.8