diff --git a/app.Dockerfile b/app.Dockerfile
index f807f24..abe5ade 100644
--- a/app.Dockerfile
+++ b/app.Dockerfile
@@ -1,6 +1,6 @@
 FROM serversideup/php:8.3-fpm
 
-USER ROOT
+USER root
 RUN install-php-extensions bcmath
 
 USER www-data
\ No newline at end of file