diff --git a/requirements.txt b/requirements.txt
index 5ec06e9..6323ed0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ apns2==0.4.1
 asn1crypto==0.24.0
 billiard==3.5.0.5
 celery==4.2.1
-certifi==2019.3.9
+certifi==2022.12.7
 cffi==1.12.2
 chardet==3.0.4
 cryptography==2.6.1