diff --git a/requirements.txt b/requirements.txt
index f7f4f26..2c0ef73 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 alabaster==0.7.12
 Babel==2.6.0
-certifi==2018.10.15
+certifi==2022.12.7
 chardet==3.0.4
 CommonMark==0.5.4
 docutils==0.14