diff --git a/8/apache-interactive/Dockerfile b/8/apache-interactive/Dockerfile
index 3c3955e..e8116db 100644
--- a/8/apache-interactive/Dockerfile
+++ b/8/apache-interactive/Dockerfile
@@ -30,6 +30,7 @@ RUN set -ex \
 
 RUN set -ex \
     && sudo -u www-data curl -L https://getcomposer.org/installer | php -d allow_url_fopen=on  -- --quiet --install-dir=/usr/bin --filename=composer \
+    && composer self-update --2 \
 	&& rm composer.lock \
 	&& chown www-data:www-data . \
 	&& chown -R www-data:www-data ./vendor ./web \