diff --git a/composer.json b/composer.json
index c166ca9a1..1044be275 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
 		"chillerlan/php-traits": "^1.1"
 	},
 	"require-dev": {
-		"phpunit/phpunit": "6.4.*",
+		"phpunit/phpunit": "6.5.*",
 		"chillerlan/php-authenticator": "^2.0"
 	},
 	"suggest": {