diff --git a/.travis.yml b/.travis.yml
index 5cbcff5..2f4a194 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,8 +16,7 @@ matrix:
       env: 'COMPOSER_FLAGS="--prefer-stable --prefer-lowest"'
 
 before_script:
-  - travis_retry composer self-update
-  - travis_retry composer update ${COMPOSER_FLAGS} --no-interaction --prefer-source
+  - travis_retry composer update ${COMPOSER_FLAGS} --no-interaction --prefer-dist
 
 script:
   - vendor/bin/phpcs --standard=psr2 src/