diff --git a/docs/requirements.txt b/docs/requirements.txt
index 7e7bd07..093e2fa 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,7 +1,7 @@
 alabaster==0.7.12
 Babel==2.7.0
 breathe==4.13.0.post0
-certifi==2019.3.9
+certifi==2022.12.7
 chardet==3.0.4
 commonmark==0.9.0
 docutils==0.14