diff --git a/composer.json b/composer.json
index 44b390d..eb7fb1f 100755
--- a/composer.json
+++ b/composer.json
@@ -40,7 +40,7 @@
         "phpunit/phpunit": "^9",
         "amphp/phpunit-util": "^3",
         "amphp/php-cs-fixer-config": "^2",
-        "psalm/phar": "^5.4"
+        "psalm/phar": "^5.18"
     },
     "autoload": {
         "psr-4": {
diff --git a/src/Worker/Internal/ContextWorker.php b/src/Worker/Internal/ContextWorker.php
index 3928721..66dcd45 100644
--- a/src/Worker/Internal/ContextWorker.php
+++ b/src/Worker/Internal/ContextWorker.php
@@ -51,6 +51,7 @@ public function __construct(private readonly Context $context)
     {
         $jobQueue = &$this->jobQueue;
         $queues = &$this->queues;
+        /** @psalm-suppress UndefinedVariable $onReceive is defined here. */
         $this->onReceive = $onReceive = static function (
             ?\Throwable $exception,
             ?Internal\JobPacket $data