diff --git a/api/requirements.txt b/api/requirements.txt
index 0a10ed60b..8197cf658 100644
--- a/api/requirements.txt
+++ b/api/requirements.txt
@@ -1,6 +1,6 @@
 falcon==2.0.0
 falcon-cors==1.1.7
 gevent==1.4.0
-gunicorn==20.0.4
+gunicorn==21.2.0
 natural==0.2.0
 redis==3.4.1