diff --git a/composer.json b/composer.json
index eb8497e..fecbea2 100644
--- a/composer.json
+++ b/composer.json
@@ -6,13 +6,13 @@
 
   "require": {
     "php": "^7.1",
-    "symfony/http-kernel": "^4.0|^5.0",
-    "symfony/console": "^4.0|^5.0",
-    "symfony/config": "^4.0|^5.0",
-    "symfony/dependency-injection": "^4.0|^5.0"
+    "symfony/http-kernel": "^4.4|^5.1",
+    "symfony/console": "^4.4|^5.1",
+    "symfony/config": "^4.4|^5.1",
+    "symfony/dependency-injection": "^4.4|^5.1"
   },
   "require-dev": {
-    "symfony/phpunit-bridge": "^4.0|^5.0"
+    "symfony/phpunit-bridge": "^4.4|^5.1"
   },
 
   "autoload": {