diff --git a/.travis.yml b/.travis.yml
index 1930b38ef..f02fefcb1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,6 +38,7 @@ before_install:
   # disable default memory limit
   - export INI=~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
   - echo memory_limit = -1 >> $INI
+  - composer validate
 
 install:
   # flags to pass to install