diff --git a/requirements/base.txt b/requirements/base.txt
index 433ad42e4..faf4d1751 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -4,7 +4,7 @@ django-environ==0.10.0
 django-bootstrap-breadcrumbs==0.9.2
 
 # Web serving
-gunicorn==20.1.0
+gunicorn==21.1.0
 whitenoise==6.5.0
 
 # Database APIs