diff --git a/.travis.yml b/.travis.yml
index be79e9fe..7db07d7e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -35,7 +35,7 @@ before_install:
   - if [[ "$TRAVIS_PHP_VERSION" = "hhvm" || "$TRAVIS_PHP_VERSION" = "nightly" ]]; then sed -i '/^.*friendsofphp\/php-cs-fixer.*$/d' composer.json; fi
 
 install:
-  - travis_retry composer install --no-interaction --prefer-dist
+  - travis_retry composer install --no-interaction
 
 script:
   - if [[ "$WITH_COVERAGE" == "true" ]]; then ./vendor/bin/phpunit --coverage-text; else composer test; fi
diff --git a/composer.json b/composer.json
index 8a2de30e..58dd66e2 100644
--- a/composer.json
+++ b/composer.json
@@ -74,5 +74,8 @@
         "style-fix": "php-cs-fixer fix --verbose",
         "test": "phpunit",
         "testOnly": "phpunit --colors --filter"
+    },
+    "config": {
+        "preferred-install": "dist"
     }
 }