diff --git a/docs/requirements.txt b/docs/requirements.txt
index 63253aa..470684c 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
 Sphinx
 sphinx-rtd-theme
 requests==2.24.0
-certifi==2020.6.20
+certifi==2022.5.18.1