diff --git a/Dockerfile b/Dockerfile
index ae34b7a..24b045c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,6 +2,8 @@ FROM nginxinc/nginx-unprivileged:stable-alpine-slim
 LABEL authors="tebarius"
 LABEL description="nginx_with_404_and_502_games"
 
-COPY ./games /usr/share/nginx/html
+USER root
+RUN apk upgrade --no-cache
 
 USER nginx
+COPY ./games /usr/share/nginx/html