diff --git a/requirements.txt b/requirements.txt
index 39448a85..4163bcf8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ psycopg2==2.7.4
 Pygments==2.2.0
 PyPDF2==1.26.0
 python-dateutil==2.7.2
-pytz==2018.3
+pytz==2018.4
 raven==6.6.0
 reportlab==3.4.0
 selenium==3.11.0