diff --git a/composer.json b/composer.json
index ce6d1fdd..a588fc83 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
 		"phpstan/extension-installer": "^1.0",
 		"phpstan/phpstan": "^0.12.60",
 		"phpstan/phpstan-strict-rules": "^0.12.5",
-		"phpunit/phpunit": "^7.5.20",
+		"phpunit/phpunit": "^9.5.26",
 		"symfony/process": "^5.2"
 	},
 	"config": {