use trusty for hhvm

dbu · dbu · commit 907e32eba613 · 2017-07-31T09:43:21.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,11 +1,14 @@
 language: php
 
 php:
-  - 5.5
   - 5.6
   - 7.0
   - 7.1
-  - hhvm
+
+matrix:
+  include:
+    - php: hhvm
+      dist: trusty
 
 sudo: false
 
