diff --git a/crawlab/requirements.txt b/crawlab/requirements.txt
index 39912ed9..fed8fb80 100644
--- a/crawlab/requirements.txt
+++ b/crawlab/requirements.txt
@@ -11,3 +11,5 @@ lxml==4.3.3
 Flask_Cors==3.0.7
 Werkzeug==0.15.2
 eventlet
+Celery
+Flower