diff --git a/docker/demo/Dockerfile b/docker/demo/Dockerfile
index 051e659db..837d48956 100644
--- a/docker/demo/Dockerfile
+++ b/docker/demo/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:1.25
+FROM nginx:1.27.3
 COPY htdocs /var/lib/data/demo/htdocs
 COPY init /init
 COPY nginx.conf /etc/nginx/conf.d/default.conf