diff --git a/Dockerfile b/Dockerfile
index 1ad688e..88226fe 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,5 +8,4 @@ RUN apt upgrade -y
 RUN apt install php php-mbstring php-xml php-pdo php-mysql php-xdebug -y
 RUN apt install curl -y
 RUN cd /tmp
-RUN curl -sS https://getcomposer.org/installer | php
-RUN mv composer.phar /usr/local/bin/composer
+RUN curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin --filename=composer