diff --git a/requirements.txt b/requirements.txt
index c3fb7db287..421a4cde91 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,3 +13,4 @@ simplejson==3.17.5
 six==1.16.0
 sqlparse==0.4.2
 whitenoise==5.3.0
+gunicorn==20.1.0