diff --git a/.travis.yml b/.travis.yml
index 78f77291ea51f90fcb67ac53ccde8b7681d63054..5a3746fe4a71bf458977c441ee8b7d11110550b5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -33,7 +33,7 @@ script:
   - cd $TRAVIS_BUILD_DIR
   - ./vendor/bin/phpunit
   - ./vendor/bin/behat
-  # - ./vendor/bin/grumphp run
+  - ./vendor/bin/grumphp run
 
 notifications:
   email: false
diff --git a/composer.json b/composer.json
index 91fab1ac495053549865264b21d7298e50a48ef0..a808b9ac9016273ba9cccfc5b3f0950c6f4465cf 100644
--- a/composer.json
+++ b/composer.json
@@ -34,7 +34,8 @@
     "bex/behat-screenshot": "^1.2",
     "bex/behat-screenshot-image-driver-img42": "^1.0",
     "bex/behat-extension-driver-locator": "^1.0",
-    "phpro/grumphp": "^0.12.0",
+    "phpro/grumphp": "0.11.4",
+    "squizlabs/php_codesniffer": "~2.9",
     "drupal/coder": "8.2.8"
   },
   "conflict": {