diff --git a/Dockerfile b/Dockerfile
index b932fbf..6ec6f2a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM buildpack-deps:stable
 
-ENV NGINX_VERSION nginx-1.19.6
+ENV NGINX_VERSION nginx-1.21.6
 
 ADD startscript.sh /usr/sbin/startscript.sh
 ADD config /etc/nginx/