diff --git a/doc/requirements.txt b/doc/requirements.txt
index 0560ec2..2304205 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,6 +1,6 @@
 alabaster==0.7.12
 Babel==2.9.1
-certifi==2022.12.7
+certifi==2023.7.22
 charset-normalizer==2.0.12
 docutils==0.17.1
 idna==3.3