Fix for Travis exclude matrix

Author: stayallive

.travis.yml

@@ -30,11 +30,11 @@ matrix:
     - php: 5.6
       env: LARAVEL=5.6.* TESTBENCH=3.6.* PHPUNIT=7.0.*
     - php: 5.6
-      env: LARAVEL=5.7.* TESTBENCH=3.7.* PHPUNIT=7.0.*
+      env: LARAVEL=5.7.* TESTBENCH=3.7.* PHPUNIT=7.3.*
     - php: 7.0
       env: LARAVEL=5.6.* TESTBENCH=3.6.* PHPUNIT=7.0.*
     - php: 7.0
-      env: LARAVEL=5.7.* TESTBENCH=3.7.* PHPUNIT=7.0.*
+      env: LARAVEL=5.7.* TESTBENCH=3.7.* PHPUNIT=7.3.*
     - php: 7.2
       env: LARAVEL=5.0.* TESTBENCH=3.0.* PHPUNIT=4.8.*