diff --git a/requirements.txt b/requirements.txt
index fec3b0b2..3dd0f662 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ Pillow==4.2.1
 psycopg2==2.7.1
 Pygments==2.2.0
 PyPDF2==1.26.0
-python-dateutil==2.6.0
+python-dateutil==2.6.1
 pytz==2017.2
 raven==6.1.0
 reportlab==3.4.0