Update required PHP version

xicrow · xicrow · commit 7522ad183b84 · 2016-05-26T18:06:24.000+02:00
diff --git a/composer.json b/composer.json
@@ -20,7 +20,7 @@
 		"issues": "https://github.com/xicrow/php-debug/issues"
 	},
 	"require"     : {
-		"php": "^5.4"
+		"php": "^5.5"
 	},
 	"require-dev" : {
 		"phpunit/phpunit": "^5.2"
