diff --git a/.travis.yml b/.travis.yml
index 6a319dd6..8c524332 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,6 +16,7 @@ env:
 before_script:
   - git clone git://github.com/zenovich/runkit.git && cd runkit && phpize && ./configure && make && make install && cd ..
   - echo "extension=runkit.so" >> `php --ini | grep "Loaded Configuration" | sed -e "s|.*:\s*||"`
+  - composer install --dev --no-interaction
 
 script:
   - phpunit --verbose --coverage-text --coverage-html code_coverage/