diff --git a/docs/requirements.txt b/docs/requirements.txt
index 61dc91e..4c72647 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -5,7 +5,7 @@ attrs==19.1.0
 babel==2.6.0
 backcall==0.1.0
 bleach==3.1.1
-certifi==2019.3.9
+certifi==2022.12.7
 chardet==3.0.4
 colorama==0.4.1
 coverage==4.5.3