diff --git a/.travis.yml b/.travis.yml
index 1b25d4c5..e7bc6f89 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -61,7 +61,7 @@ before_script:
         mkdir -p build/logs
         COMPOSER_MEMORY_LIMIT=-1 travis_retry composer require php-coveralls/php-coveralls
       fi
-      COMPOSER_MEMORY_LIMIT=-1 travis_retry composer install --prefer-source --no-interaction
+      COMPOSER_MEMORY_LIMIT=-1 travis_retry composer update --prefer-source --no-interaction
       ls -al
     fi   
   # Install PHP CodeSniffer and WPCS.