diff --git a/composer.json b/composer.json
index 9a818840..f008c8fd 100644
--- a/composer.json
+++ b/composer.json
@@ -31,7 +31,7 @@
         "phpstan/extension-installer": "^1.3.1",
         "phpstan/phpstan": "^1.10.59",
         "phpstan/phpstan-phpunit": "^1.3.16",
-        "phpunit/phpunit": "^8.5.36"
+        "phpunit/phpunit": "^8.5.37"
     },
     "suggest": {
         "ext-mbstring": "for parsing UTF-8 CSS"