diff --git a/requirements.txt b/requirements.txt
index f3cb6ef..1d3070f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-celery==4.1.0
+celery==4.2.1
 redis==2.10.6
 -e git+https://github.com/duncan-r/SHIP.git@tuflow_refactor#egg=ship