diff --git a/web/Dockerfile b/web/Dockerfile
index b9eff75..c7a86ea 100644
--- a/web/Dockerfile
+++ b/web/Dockerfile
@@ -77,7 +77,7 @@ RUN git submodule update
 WORKDIR /var/www/MISP/app
 
 # FIX COMPOSER
-RUN php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
+RUN curl --fail --location -o composer-setup.php https://getcomposer.org/installer
 RUN php -r "if (hash_file('sha384', 'composer-setup.php') === '48e3236262b34d30969dca3c37281b3b4bbe3221bda826ac6a9a62d6444cdb0dcd0615698a5cbe587c3f0fe57a54d8f5') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
 RUN php composer-setup.php
 RUN php -r "unlink('composer-setup.php');"