diff --git a/.travis.yml b/.travis.yml
index 19f757f..2fb1fd4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,37 +6,71 @@ cache:
   directories:
     - $HOME/.composer/cache
 
+env:
+  global:
+    - COMPOSER_ARGS="--no-interaction"
+    - COVERAGE_DEPS="php-coveralls/php-coveralls"
+
 matrix:
-  fast_finish: true
   include:
     - php: 5.6
       env:
-        - TEST_COVERAGE=true
+        - DEPS=lowest
+    - php: 5.6
+      env:
+        - DEPS=locked
+        - LEGACY_DEPS="phpunit/phpunit"
+    - php: 5.6
+      env:
+        - DEPS=latest
     - php: 7
       env:
+        - DEPS=lowest
+    - php: 7
+      env:
+        - DEPS=locked
+        - LEGACY_DEPS="phpunit/phpunit"
+    - php: 7
+      env:
+        - DEPS=latest
+    - php: 7.1
+      env:
+        - DEPS=lowest
+    - php: 7.1
+      env:
+        - DEPS=locked
         - CS_CHECK=true
+        - TEST_COVERAGE=true
     - php: 7.1
-    - php: hhvm
-  allow_failures:
-    - php: hhvm
-
-notifications:
-  irc: "irc.freenode.org#apigility-dev"
-  email: false
+      env:
+        - DEPS=latest
+    - php: 7.2
+      env:
+        - DEPS=lowest
+    - php: 7.2
+      env:
+        - DEPS=locked
+    - php: 7.2
+      env:
+        - DEPS=latest
 
 before_install:
   - if [[ $TEST_COVERAGE != 'true' ]]; then phpenv config-rm xdebug.ini || return 0 ; fi
-  - travis_retry composer self-update
 
 install:
-  - if [[ $TEST_COVERAGE == 'true' ]]; then composer require --dev --no-update "satooshi/php-coveralls:^1.0" ; fi
-  - travis_retry composer install --no-interaction
-  - composer show
+  - travis_retry composer install $COMPOSER_ARGS --ignore-platform-reqs
+  - if [[ $LEGACY_DEPS != '' ]]; then travis_retry composer update $COMPOSER_ARGS --with-dependencies $LEGACY_DEPS ; fi
+  - if [[ $DEPS == 'latest' ]]; then travis_retry composer update $COMPOSER_ARGS ; fi
+  - if [[ $DEPS == 'lowest' ]]; then travis_retry composer update --prefer-lowest --prefer-stable $COMPOSER_ARGS ; fi
+  - if [[ $TEST_COVERAGE == 'true' ]]; then travis_retry composer require --dev $COMPOSER_ARGS $COVERAGE_DEPS ; fi
+  - stty cols 120 && composer show
 
 script:
-  - if [[ $TEST_COVERAGE == 'true' ]]; then composer test-coverage ; fi
-  - if [[ $TEST_COVERAGE != 'true' ]]; then composer test ; fi
-  - if [[ $CS_CHECK == 'true' ]]; then composer cs ; fi
+  - if [[ $TEST_COVERAGE == 'true' ]]; then composer test-coverage ; else composer test ; fi
+  - if [[ $CS_CHECK == 'true' ]]; then composer cs-check ; fi
 
 after_script:
-  - if [[ $TEST_COVERAGE == 'true' ]]; then composer coveralls ; fi
+  - if [[ $TEST_COVERAGE == 'true' ]]; then travis_retry php vendor/bin/php-coveralls -v ; fi
+
+notifications:
+  email: false