diff --git a/composer.json b/composer.json
index cbfa008..2d37781 100644
--- a/composer.json
+++ b/composer.json
@@ -16,6 +16,6 @@
 		"classmap": ["src/"]
 	},
 	"require-dev": {
-		"nette/tester": "^1.7"
+		"nette/tester": "^1.7 || ^2.3"
 	}
 }