diff --git a/composer.json b/composer.json
index 349e645..8a4f2d8 100644
--- a/composer.json
+++ b/composer.json
@@ -10,14 +10,14 @@
 		}
 	],
 	"require": {
-		"php": ">=8.1",
+		"php": ">=8.1 <8.4",
 		"latte/latte": "^3.0",
 		"nette/robot-loader": "^3.2",
 		"nette/http": "^3.0"
 	},
 	"require-dev": {
-		"nette/tester": "^2.3",
-		"tracy/tracy": "^2.7",
+		"nette/tester": "^2.5",
+		"tracy/tracy": "^2.10",
 		"phpstan/phpstan-nette": "^1.2.9"
 	},
 	"autoload": {