diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ee762d7cdd886588e5c5f0446cd1e371407c82d9..6f06c0c04780e080d58b3c012e55efdfa4365481 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -10,9 +10,6 @@ test:
       - COMPOSER_MAJOR:
           - "1"
           - "2"
-        COMPOSER_OPTS:
-          - ""
-          - "--prefer-lowest --prefer-stable"
         PHP_VERSION:
           - "7.1"
           - "7.3"
@@ -38,7 +35,7 @@ test:
     - php /tmp/composer -V
   script:
     - |
-      echo -e "section_start:`date +%s`:composer[collapsed=true]\r\e[0Kcomposer update ${COMPOSER_OPTS}"
-      php /tmp/composer update -n --no-progress ${COMPOSER_OPTS}
+      echo -e "section_start:`date +%s`:composer[collapsed=true]\r\e[0Kcomposer update"
+      php /tmp/composer update -n --no-progress
       echo -en "section_end:`date +%s`:composer\r\e[0K"
     - php /tmp/composer test