diff --git a/docker-examples/v5/reverse_proxy/nginx_relative/nginx_ssl/Dockerfile b/docker-examples/v5/reverse_proxy/nginx_relative/nginx_ssl/Dockerfile
old mode 100755
new mode 100644
index 1105526a1ff8..969f62498347
--- a/docker-examples/v5/reverse_proxy/nginx_relative/nginx_ssl/Dockerfile
+++ b/docker-examples/v5/reverse_proxy/nginx_relative/nginx_ssl/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx
+FROM nginx:1
 
 COPY cert.crt /etc/nginx/cert.crt
 COPY cert.key /etc/nginx/cert.key