diff --git a/Dockerfile b/Dockerfile
index b32b783..b4aea94 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx
+FROM nginx:1.9.7
 COPY index.html /usr/share/nginx/html/
 COPY mysite.template /etc/nginx/conf.d/
 # Add a dummy test path to simplify local testing