diff --git a/docs/requirements.txt b/docs/requirements.txt
index 81b9dce8..9e7379c9 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,7 +1,7 @@
 alabaster==0.7.12
 argh==0.26.2
 Babel==2.6.0
-certifi==2018.10.15
+certifi==2023.7.22
 chardet==3.0.4
 docutils==0.14
 idna==2.7