attempting to fix build

DavidHickman · DavidHickman · commit 4a0dc003ba8c · 2019-04-04T12:19:19.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -60,7 +60,7 @@ before_script:
       5.2)
         ;;
       *)
-        composer global require "phpunit/phpunit:6"
+        composer global require "phpunit/phpunit:6.*"
         ;;
     esac
   - |
