diff --git a/composer.json b/composer.json
index 3654502..6bc9c7a 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,7 @@
         "dms/phpunit-arraysubset-asserts": "0.4.0",
         "ergebnis/composer-normalize": "2.29.0",
         "orchestra/testbench": "7.21.0",
-        "phpunit/phpunit": "9.6.1",
+        "phpunit/phpunit": "9.6.3",
         "squizlabs/php_codesniffer": "3.7.1"
     },
     "replace": {