Fix for phpunit on 7.1

.travis.yml

@@ -38,7 +38,7 @@ jobs:
           script: ./.travis/deploy_script.sh
           on:
             all_branches: true
-            php: '7.1'
+            php: '7.2'
     - stage: release
       script: skip
       before_deploy:
@@ -54,4 +54,4 @@ jobs:
         on:
           tags: true
           repo: nabeelio/phpvms
-          php: '7.1'
+          php: '7.2'

composer.json

@@ -49,7 +49,7 @@
         "waavi/sanitizer": "1.0.x"
     },
     "require-dev": {
-        "phpunit/phpunit": "~7.0",
+        "phpunit/phpunit": "7.4.x",
         "barryvdh/laravel-ide-helper": "^2.0",
         "barryvdh/laravel-debugbar": "^3.0",
         "mockery/mockery": "0.9.*",