diff --git a/ai-box/requirements.txt b/ai-box/requirements.txt
index f50c65e6b4d9f497cad38cd4bf4439d8e4a1715e..2f527b8ebc7082d99bd44450527536e2c3d4a5a1 100644
--- a/ai-box/requirements.txt
+++ b/ai-box/requirements.txt
@@ -15,6 +15,7 @@ dask==1.0.0
 decorator==4.3.0
 Django==2.0.5
 gast==0.2.0
+gevent==1.4.0
 gprof2dot==2017.9.19
 grpcio==1.16.1
 gunicorn==19.9.0