diff --git a/Dockerfile b/Dockerfile
index fbaf9bc..e974294 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ ENV \
   APP_DIR="/app" \
   APP_PORT="80"
 
-# the "app" directory (relative to Dockerfile) containers your Laravel app...
+# the "app" directory (relative to Dockerfile) contains your Laravel app...
 COPY app/ $APP_DIR
 
 RUN apk add --update \
@@ -18,10 +18,10 @@ RUN apk add --update \
     php-dom \
     && rm -rf /var/cache/apk/*
 
-RUN curl -sS https://getcomposer.org/installer | php -- \
-  --install-dir=/usr/bin --filename=composer
+# Download and make Composer executable
+RUN curl -sS https://getcomposer.org/composer-stable.phar -o /usr/bin/composer && chmod +x /usr/bin/composer
 
 RUN cd $APP_DIR && composer install
 
 WORKDIR $APP_DIR
-CMD php artisan serve --host=0.0.0.0 --port=$APP_PORT
\ No newline at end of file
+CMD php artisan serve --host=0.0.0.0 --port=$APP_PORT