diff --git a/requirements/requirements.in b/requirements/requirements.in
index 9711c1e28e..cf1c314d9d 100644
--- a/requirements/requirements.in
+++ b/requirements/requirements.in
@@ -39,7 +39,7 @@ pycrypto==2.6.1
 pygerduty==0.37.0
 pyOpenSSL==17.5.0
 pyparsing==2.2.0
-python-dateutil==2.7.0  # contains support for TZINFO= parsing
+python-dateutil==2.7.2  # contains support for TZINFO= parsing
 python-logstash==0.4.6
 python-memcached==1.59
 python-radius==1.0
diff --git a/requirements/requirements.txt b/requirements/requirements.txt
index fca17117f8..a13c7105ea 100644
--- a/requirements/requirements.txt
+++ b/requirements/requirements.txt
@@ -184,7 +184,7 @@ pyjwt==1.6.0              # via adal, social-auth-core, twilio
 pyopenssl==17.5.0
 pyparsing==2.2.0
 pyrad==2.1                # via django-radius
-python-dateutil==2.7.0
+python-dateutil==2.7.2
 python-ldap==2.5.2        # via django-auth-ldap
 python-logstash==0.4.6
 python-memcached==1.59