diff --git a/requirements/base.txt b/requirements/base.txt
index f44a010..362a204 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -1,7 +1,7 @@
 amqp==1.4.9
 bpython==0.13.1
 anyjson==0.3.3
-billiard==3.3.0.19
-celery==3.1.17
-pytz==2014.10
-mysqlclient==1.3.4
+billiard==3.3.0.23
+celery==3.1.26.post2
+pytz==2019.3
+mysqlclient==1.4.6