diff --git a/.travis.yml b/.travis.yml
index 09022ef5..b887293d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ php:
 - '5.6'
 - '7.0'
 before_script:
-- composer -n install --no-dev
+- composer -n install
 - if [[ ${TRAVIS_PHP_VERSION:0:3} == "5.6" ]]; then pecl install runkit; fi
 - if [[ ${TRAVIS_PHP_VERSION:0:3} == "5.6" ]]; then echo "runkit.internal_override=1" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini; fi
 - if [[ ${TRAVIS_PHP_VERSION:0:3} == "7.0" ]]; then pecl install uopz; fi