diff --git a/.travis.yml b/.travis.yml
index 5a788632b..aaa099461 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,16 +19,17 @@ matrix:
   include:
     - php: 5.5
       env:
-        - SULU_VERSION="1.5.*"
-      # - COMPOSER_FLAGS="--prefer-lowest --prefer-dist --no-interaction"
+        - SULU_VERSION="~1.5.1"
+        - COMPOSER_FLAGS="--prefer-lowest --prefer-dist --no-interaction"
     - php: 7.0
       env:
-      # - COMPOSER_FLAGS="--prefer-dist --no-interaction"
+        - COMPOSER_FLAGS="--prefer-dist --no-interaction"
         - SULU_VERSION="dev-develop"
         - CODE_COVERAGE="--coverage-clover=coverage.clover"
     - php: 7.0
       env:
-        - SULU_VERSION="dev-master"
+        - COMPOSER_FLAGS="--prefer-dist --no-interaction"
+        - SULU_VERSION="~1.5.1"
         - SYMFONY__PHPCR__TRANSPORT=jackrabbit
 
 before_install:
@@ -55,7 +56,7 @@ install:
   - ./Tests/app/console ongr:es:index:create -m live
 
 script:
-  - ./vendor/bin/phpunit $CODE_COVERAGE --debug
+  - ./vendor/bin/phpunit $CODE_COVERAGE
 
 after_script:
   - if [[ -n $CODE_COVERAGE ]]; then wget https://scrutinizer-ci.com/ocular.phar ; fi
diff --git a/composer.json b/composer.json
index 3b6a0253d..f32cc5710 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
     "license": "MIT",
     "require": {
         "php": "^5.5 || ^7.0",
-        "sulu/sulu": "^1.5 || dev-develop || dev-master",
+        "sulu/sulu": "^1.5.1 || dev-develop",
         "sulu/document-manager": "@dev",
         "massive/search-bundle": "@dev",
         "ongr/elasticsearch-bundle": "~1.0"