diff --git a/.travis.yml b/.travis.yml
index 5a69d02..0bbde11 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,7 +17,7 @@ matrix:
 
 sudo: false
 
-install: composer install --no-interaction
+install: COMPOSER_MEMORY_LIMIT=-1 composer install --no-interaction
 
 before_script:
   - travis_retry composer self-update