diff --git a/files/nginx/Dockerfile b/files/nginx/Dockerfile
index 8d8f02b..ba17ab1 100644
--- a/files/nginx/Dockerfile
+++ b/files/nginx/Dockerfile
@@ -1,3 +1,3 @@
 FROM nginx:latest
 
-RUN sed -i 's/\#gzip.*on;/server_tokens\toff;\n    #gzip\ton;/' /etc/nginx/nginx.conf
+RUN sed -i 's/\#gzip.*on;/server_tokens\toff;\n    # Set the `immutable` cache control options only for assets with a cache busting `v` argument\n    map $arg_v $asset_immutable {\n    "" "";\n    default ", immutable";\n   }\n    #gzip\ton;/' /etc/nginx/nginx.conf