diff --git a/requirements.txt b/requirements.txt
index 40fb71a..c04ab8f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Django==1.9
+Django==1.11.28
 django-hstore==1.4.2
 numpy==1.13.3
 olefile==0.44