diff --git a/composer.json b/composer.json
index 8e6aeb7..3d110d4 100644
--- a/composer.json
+++ b/composer.json
@@ -20,8 +20,8 @@
 	],
 	"require": {
 		"php": "~7.2",
-		"symfony/console": "~3.2|~4.0",
-		"symfony/yaml": "~3.3|~4.0"
+		"symfony/console": "~3.4|~4.3",
+		"symfony/yaml": "~3.4|~4.3"
 	},
 	"require-dev": {
 		"consistence/coding-standard": "3.9",