diff --git a/requirements/base.txt b/requirements/base.txt
index 79d779112d..3d281ffd8e 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -39,7 +39,7 @@ pathlib2==2.3.3
 pycountry==18.12.8
 PyPDF2==1.26.0
 pyocr==0.6
-python-dateutil==2.7.3
+python-dateutil==2.8.0
 python-gnupg==0.3.9
 python-magic==0.4.15
 pytz==2018.3