diff --git a/docs/requirements.txt b/docs/requirements.txt
index 2734cd2..e9f5e9f 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,7 +1,7 @@
 alabaster==0.7.12
 Babel==2.9.1
 cakephp-theme==1.1.3
-certifi==2019.11.28
+certifi==2022.12.7
 chardet==3.0.4
 docutils==0.15.2
 idna==2.8