diff --git a/.travis.yml b/.travis.yml
index ec5c936..75036d4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,6 +24,10 @@ matrix:
       env: dependencies=lowest
   fast_finish: true
 
+env:
+  global:
+    - dependencies=highest
+
 cache:
   directories:
     - vendor
@@ -36,6 +40,7 @@ before_install:
 install:
   - if [ -z "$dependencies" ]; then travis_retry composer install --no-interaction; fi;
   - if [ "$dependencies" = "lowest" ]; then travis_retry composer update --prefer-lowest --no-interaction; fi;
+  - if [ "$dependencies" = "highest" ]; then travis_retry composer update --no-interaction; fi;
   - composer show -i
 
 script: