diff --git a/requirements.txt b/requirements.txt
index 377c963..f3069d5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2019.3.9
+certifi==2019.11.28
 chardet==3.0.4
 dj-database-url==0.5.0
 Django==1.11.20