diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index cb0929f..cf044ef 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,7 +11,7 @@ test:7:
       - apk add --no-cache php7-phpdbg
       - curl -sS https://getcomposer.org/installer | php
       - php composer.phar update
-      - php composer.phar install
+      - php composer.phar install --ignore-platform-reqs
     image: php:7-alpine
     script:
       - phpdbg -qrr -- vendor/bin/phpunit --coverage-text --colors=never
@@ -22,7 +22,7 @@ test:7.1:
       - apk add --no-cache php7.1-phpdbg
       - curl -sS https://getcomposer.org/installer | php
       - php composer.phar update
-      - php composer.phar install
+      - php composer.phar install --ignore-platform-reqs
     image: php:7.1-alpine
     script:
       - phpdbg -qrr -- vendor/bin/phpunit --coverage-text --colors=never