diff --git a/requirements.txt b/requirements.txt
index 5ea1fe9..dc1b3d5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2019.6.16
+certifi==2023.7.22
 chardet==3.0.4
 coverage==4.5.4
 defusedxml==0.6.0