diff --git a/requirements.txt b/requirements.txt
index d808bf1..494c7d0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 aiosmtpd==1.4.5
 atpublic==4.0
 attrs==23.1.0
-certifi==2023.7.22
+certifi==2024.7.4
 charset-normalizer==3.2.0
 idna==3.7
 pyslack==0.5.0