diff --git a/.travis.yml b/.travis.yml
index b4a70db..e9c89a8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,9 +14,9 @@ env:
         - SELENIUM_VERSION=3.6.0
     matrix:
         - DEPS="" PROFILE=default
-#        - DEPS="--prefer-lowest" PROFILE=default
+        - DEPS="--prefer-lowest" PROFILE=default
         - DEPS="" PROFILE=symfony2
-#        - DEPS="--prefer-lowest" PROFILE=symfony2
+        - DEPS="--prefer-lowest" PROFILE=symfony2
 
 php:
     - 7.0
diff --git a/composer.json b/composer.json
index 22d2b9f..7b6002d 100644
--- a/composer.json
+++ b/composer.json
@@ -12,11 +12,11 @@
         "behat/behat": "^3.5.0",
         "behat/mink-extension": "^2.3.1",
         "behat/symfony2-extension": "^2.1.5",
-        "symfony/security": "^3.4",
+        "symfony/security": "^3.4|^4.0",
         "symfony/dom-crawler": "^2.4|^3.0|^4.0",
-        "symfony/translation": "^3.4",
-        "symfony/config": "^3.4",
-        "symfony/dependency-injection": "^3.4",
+        "symfony/translation": "^3.4|^4.0",
+        "symfony/config": "^3.4|^4.0",
+        "symfony/dependency-injection": "^3.4|^4.0",
         "phpunit/php-code-coverage": "^5",
         "phpunit/phpunit": "^6"
     },