diff --git a/docs/requirements.txt b/docs/requirements.txt
index 92b2bc36..ed759e8b 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,6 +1,6 @@
 alabaster==0.7.12
 Babel==2.9.1
-certifi==2019.9.11
+certifi==2023.7.22
 chardet==3.0.4
 docutils==0.15.2
 idna==3.7