diff --git a/docket/requirements.txt b/docket/requirements.txt
index ae48772..d65db78 100644
--- a/docket/requirements.txt
+++ b/docket/requirements.txt
@@ -4,7 +4,7 @@ appdirs==1.4.3
 asn1crypto==0.22.0
 billiard==3.5.0.2
 celery==4.0.2
-certifi==2017.4.17
+certifi==2022.12.7
 cffi==1.10.0
 chardet==3.0.4
 click==6.7