diff --git a/.travis.yml b/.travis.yml
index 9292f62..a8fb440 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ php:
 
 before_script:
   - travis_retry composer self-update
-  - travis_retry composer install --no-interaction --prefer-source
+  - travis_retry composer install --ignore-platform-reqs --no-interaction --prefer-source
 
 script:
   - echo "OK"