diff --git a/.travis.yml b/.travis.yml
index 2327f318..710f7731 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,16 +10,16 @@ matrix:
   include:
     - php: 5.5
       env: COMPOSER_FLAGS="--prefer-lowest"
-    - php: 5.6
-      env: SYMFONY_VERSION=2.7.*
     - php: 5.6
       env: SYMFONY_VERSION=2.8.*
     - php: 5.6
       env: SYMFONY_VERSION=3.1.*
+    - php: 5.6
+      env: SYMFONY_VERSION=3.4.*
+    - php: 7.1
+      env: SYMFONY_VERSION=4.0.*
   allow_failures:
     - php: hhvm
-    - php: 7.0
-    - php: 7.1
 
 cache:
   directories:
diff --git a/composer.json b/composer.json
index 5888463a..a37c5d67 100644
--- a/composer.json
+++ b/composer.json
@@ -44,7 +44,7 @@
     "require": {
         "php": ">=5.3.3",
         "ext-curl": "*",
-        "symfony/event-dispatcher": "~2.1|~3.0"
+        "symfony/event-dispatcher": "~2.1|~3.0|~4.0"
     },
     "autoload": {
         "psr-4": {
@@ -64,7 +64,7 @@
     },
     "require-dev": {
         "doctrine/cache": "^1.6.0",
-        "symfony/class-loader": "~2.1|~3.0",
+        "symfony/class-loader": "~2.1|~3.0|~4.0",
         "monolog/monolog": "^1.3.0",
         "psr/log": "~1.0",
         "zendframework/zend-cache": "2.*,<2.3",