diff --git a/composer.json b/composer.json
index 030b835..fe8094e 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,6 @@
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.15",
-        "guzzlehttp/guzzle": "^7.5",
         "phpstan/phpstan": "^1.10",
         "phpunit/phpunit": "^9.0"
     },
diff --git a/tests/PoolTest.php b/tests/PoolTest.php
index 51a781b..302b43c 100644
--- a/tests/PoolTest.php
+++ b/tests/PoolTest.php
@@ -36,6 +36,6 @@ public function test_factory(): void
     {
         $this->expectException(UnsupportedException::class);
 
-        $pool = PoolFactory::create(new NullConnector());
+        PoolFactory::create(new NullConnector());
     }
 }