diff --git a/docs/requirements.txt b/docs/requirements.txt
index a2e152e..b3f87e5 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,5 +1,5 @@
 backcall==0.2.0
-certifi==2022.12.7
+certifi==2023.7.22
 cycler==0.10.0
 decorator==5.1.0
 discopy==0.3.7.1