Update .travis.yml

Author: Kyle Gadd

.travis.yml

@@ -16,7 +16,7 @@ matrix:
 
 before_script:
     - composer install --dev
-    - if [[ $TRAVIS_PHP_VERSION == 5.4 ]]; then composer require codeclimate/php-test-reporter:dev-master; fi
+    - if [[ $TRAVIS_PHP_VERSION == 5.4 ]]; then composer require codeclimate/php-test-reporter; fi
 
 script:
     - if [[ $TRAVIS_PHP_VERSION == 5.4 ]];