diff --git a/Dockerfile b/Dockerfile
index 2682d46..bd42d8e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,7 @@ RUN ln -sf /dev/stdout /var/log/nginx/access.log && ln -sf /dev/stderr /var/log/
 # copy the django code
 COPY ./src ./app
 
-RUN adduser nginx
+RUN useradd nginx
 
 RUN chgrp -R 0 ./app && chmod -R g=u ./app
 RUN chown -R nginx:0 /var/cache/nginx && \