diff --git a/composer.json b/composer.json
index 0663dec2..8707397b 100644
--- a/composer.json
+++ b/composer.json
@@ -11,12 +11,12 @@
     ],
     "require": {
         "php": "^7.1",
-        "symfony/framework-bundle": "^3.4 || ^4.0 || ^5.0",
-        "symfony/validator": "^3.4 || ^4.0 || ^5.0",
-        "symfony/translation": "^3.4 || ^4.0 || ^5.0",
-        "symfony/twig-bundle": "^3.4 || ^4.0 || ^5.0",
-        "symfony/finder": "^3.4 || ^4.0 || ^5.0",
-        "symfony/intl": "^3.4 || ^4.0 || ^5.0",
+        "symfony/framework-bundle": "^3.4 || ^4.3 || ^5.0",
+        "symfony/validator": "^3.4 || ^4.3 || ^5.0",
+        "symfony/translation": "^3.4 || ^4.3 || ^5.0",
+        "symfony/twig-bundle": "^3.4 || ^4.3 || ^5.0",
+        "symfony/finder": "^3.4 || ^4.3 || ^5.0",
+        "symfony/intl": "^3.4 || ^4.3 || ^5.0",
 
         "php-translation/common": "^1.0",
         "php-translation/symfony-storage": "^1.0",
@@ -30,13 +30,13 @@
         "php-http/curl-client": "^1.7",
         "php-http/message": "^1.6",
         "php-http/message-factory": "^1.0.2",
-        "symfony/console": "^3.4 || ^4.0 || ^5.0",
-        "symfony/twig-bridge": "^3.4 || ^4.0 || ^5.0",
-        "symfony/asset": "^3.4 || ^4.0 || ^5.0",
-        "symfony/dependency-injection": "^3.4 || ^4.0 || ^5.0",
-        "symfony/web-profiler-bundle": "^3.4 || ^4.0 || ^5.0",
+        "symfony/console": "^3.4 || ^4.3 || ^5.0",
+        "symfony/twig-bridge": "^3.4 || ^4.3 || ^5.0",
+        "symfony/asset": "^3.4 || ^4.3 || ^5.0",
+        "symfony/dependency-injection": "^3.4 || ^4.3 || ^5.0",
+        "symfony/web-profiler-bundle": "^3.4 || ^4.3 || ^5.0",
         "matthiasnoback/symfony-dependency-injection-test": "^4.1",
-        "matthiasnoback/symfony-config-test": "^4.0",
+        "matthiasnoback/symfony-config-test": "^4.1",
         "nyholm/psr7": "^1.1",
         "nyholm/symfony-bundle-test": "^1.6",
         "phpunit/phpunit": "^8.4"