Fix travis build

bwoebi · bwoebi · commit 031dcf006e2f · 2017-07-05T17:22:50.000+02:00
diff --git a/composer.json b/composer.json
@@ -14,7 +14,7 @@
 		}
 	],
 	"require-dev": {
-		"phpunit/phpunit": "^5"
+		"phpunit/phpunit": "^4|^5"
 	},
 	"autoload": {
 		"psr-4": {
