diff --git a/docs/requirements.txt b/docs/requirements.txt
index 729a88b0..9429c571 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -2,7 +2,7 @@ alabaster==0.7.12
 appnope==0.1.0
 Babel==2.6.0
 backcall==0.1.0
-certifi==2018.10.15
+certifi==2022.12.7
 chardet==3.0.4
 cycler==0.10.0
 decorator==4.3.0