diff --git a/ddapp/requirements.txt b/ddapp/requirements.txt
index 8087f9d..2f36e04 100644
--- a/ddapp/requirements.txt
+++ b/ddapp/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2017.4.17
+certifi==2022.12.7
 chardet==3.0.4
 defusedxml==0.5.0
 Django==1.11.3