diff --git a/requirements/base.txt b/requirements/base.txt
index d83710b..5f769f4 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -1,10 +1,10 @@
-amqp==1.4.6
+amqp==1.4.9
 bpython==0.13.1
 anyjson==0.3.3
 argparse==1.2.1
-billiard==3.3.0.19
-celery==3.1.17
-kombu==3.0.24
-pytz==2014.10
+billiard==3.3.0.23
+celery==3.1.26.post2
+kombu==3.0.37
+pytz==2019.2
 wsgiref==0.1.2
-PyYAML==3.11
+PyYAML==3.13