diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index fbdaba3..35ba739 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -12,8 +12,9 @@ services:
 test:7:
     before_script:
       - sh build/docker_install.sh > /dev/null
-      - curl -sS https://getcomposer.org/installer | php
       - apk add --no-cache php7-apcu php7-memcached php7-phpdbg
+      - docker-php-ext-enable apcu memcached
+      - curl -sS https://getcomposer.org/installer | php
       - php composer.phar install --ignore-platform-reqs
     image: php:7-alpine
     script:
@@ -22,8 +23,9 @@ test:7:
 test:7.1:
     before_script:
       - sh build/docker_install.sh > /dev/null
-      - curl -sS https://getcomposer.org/installer | php
       - apk add --no-cache php7.1-apcu php7.1-memcached php7.1-phpdbg
+      - docker-php-ext-enable apcu memcached
+      - curl -sS https://getcomposer.org/installer | php
       - php composer.phar install --ignore-platform-reqs
     image: php:7.1-alpine
     script: