diff --git a/docs/requirements.txt b/docs/requirements.txt
index 30c53b4..acbfef9 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,6 +1,6 @@
 alabaster==0.7.11
 Babel==2.6.0
-certifi==2018.8.24
+certifi==2022.12.7
 chardet==3.0.4
 docutils==0.14
 idna==2.7