diff --git a/composer.json b/composer.json
index 220b40e..a024ae0 100644
--- a/composer.json
+++ b/composer.json
@@ -16,24 +16,24 @@
         "doctrine/orm": "~2.3",
         "symfony/config": "~2.3|~3.0",
         "symfony/console": "~2.3|~3.0",
-        "symfony/dependency-injection": "~2.3|~3.0",
-        "symfony/event-dispatcher": "~2.3|~3.0",
-        "symfony/filesystem": "~2.3|~3.0",
-        "symfony/finder": "~2.3|~3.0",
-        "symfony/http-kernel": "~2.3|~3.0",
-        "symfony/translation": "~2.3|~3.0",
-        "symfony/form": "~2.3|~3.0",
-        "symfony/validator": "~2.3|~3.0",
-        "symfony/browser-kit": "~2.3|~3.0"
+        "symfony/dependency-injection": "~2.3|~3.4",
+        "symfony/event-dispatcher": "~2.3|~3.4",
+        "symfony/filesystem": "~2.3|~3.4",
+        "symfony/finder": "~2.3|~3.4",
+        "symfony/http-kernel": "~2.3|~3.4",
+        "symfony/translation": "~2.3|~3.4",
+        "symfony/form": "~2.3|~3.4",
+        "symfony/validator": "~2.3|~3.4",
+        "symfony/browser-kit": "~2.3|~3.4"
     },
     "require-dev": {
         "matthiasnoback/symfony-dependency-injection-test": "~0.7",
         "phpunit/phpunit": "^4.8||^5.3",
         "symfony/asset": "^2.7||^3.1",
-        "symfony/framework-bundle": "~2.3|~3.0",
-        "symfony/security-bundle": "~2.3|~3.0",
-        "symfony/templating": "^2.3||^3.1",
-        "symfony/yaml": "^2.7||^3.1",
+        "symfony/framework-bundle": "~2.3|~3.4",
+        "symfony/security-bundle": "~2.3|~3.4",
+        "symfony/templating": "^2.3||^3.4",
+        "symfony/yaml": "^2.7||^3.4",
         "mikey179/vfsStream": "1.*"
     },
     "minimum-stability": "dev",