diff --git a/.travis.yml b/.travis.yml
index 930450d..1260fc3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@ dist: trusty
 
 env:
   global:
-    - COMPOSER_ROOT_VERSION=5.5.x-dev
+    - COMPOSER_ROOT_VERSION=5.x-dev
     - TRAVIS_NODE_VERSION="10"
 
 matrix: