attempt #1 to fix the build

Ricardo Fiorani · Ricardo Fiorani · commit 44aa01d35054 · 2019-07-28T15:45:48.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,6 +3,7 @@ sudo: false
 
 # Setup build matrix
 language: php
+dist: trusty
 php:
   - 5.4
   - 5.5
