diff --git a/tools/phpunit/composer.json b/tools/phpunit/composer.json
index 6fb8f5cb..241bd4a7 100644
--- a/tools/phpunit/composer.json
+++ b/tools/phpunit/composer.json
@@ -3,7 +3,7 @@
     "type": "metapackage",
     "description": "phpunit",
     "require-dev": {
-        "phpunit/phpunit": "10.3.3",
+        "phpunit/phpunit": "10.3.4",
         "roave/security-advisories": "dev-latest"
     },
     "config": {