diff --git a/requirements.txt b/requirements.txt
index 3e871ca7560f6c9a1731e611d334dbafd71e9afb..899198691c333e40b7c20c5c28d2de26ddaa798c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,7 +46,7 @@ pyflakes==1.6.0
 Pygments==2.2.0
 pyldap==2.4.45
 pyparsing==2.2.0
-python-dateutil==2.6.1
+python-dateutil==2.7.0
 python-editor==1.0.3
 python-engineio==2.0.2
 python-Levenshtein==0.12.0