diff --git a/docs/requirements.txt b/docs/requirements.txt
index aff621b..5695076 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,7 +1,7 @@
 alabaster==0.7.10
 Babel==2.5.3
 behave==1.2.6
-certifi==2018.1.18
+certifi==2022.12.7
 chardet==3.0.4
 colorama==0.3.9
 coverage==4.5