diff --git a/.travis.yml b/.travis.yml
index 9ced8226..b2287569 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,9 +14,6 @@ before_script:
     - composer self-update
     - composer --version
     - composer install --prefer-source
+    - ./vendor/bin/phpcs src --standard=psr2
 
-script: phpunit --configuration phpunit.xml.dist
-
-cache:
-  directories:
-    - vendor
+script: phpunit --configuration phpunit.xml.dist
\ No newline at end of file
diff --git a/composer.json b/composer.json
index b0319b0d..24bffa85 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,8 @@
     "require-dev": {
         "phpunit/phpunit": "~4.0",
         "mockery/mockery": "~0.9",
-        "league/phpunit-coverage-listener": "~1.0"
+        "league/phpunit-coverage-listener": "~1.0",
+        "squizlabs/php_codesniffer": "1.*"
     },
     "repositories": [
         {