diff --git a/src/Query/TcpTransportExecutor.php b/src/Query/TcpTransportExecutor.php
index 7efeb90b..893e96c4 100644
--- a/src/Query/TcpTransportExecutor.php
+++ b/src/Query/TcpTransportExecutor.php
@@ -139,7 +139,7 @@ public function __construct($nameserver, LoopInterface $loop = null)
         }
 
         $parts = \parse_url((\strpos($nameserver, '://') === false ? 'tcp://' : '') . $nameserver);
-        if (!isset($parts['scheme'], $parts['host']) || $parts['scheme'] !== 'tcp' || !\filter_var(\trim($parts['host'], '[]'), \FILTER_VALIDATE_IP)) {
+        if (!isset($parts['scheme'], $parts['host']) || $parts['scheme'] !== 'tcp' || @\inet_pton(\trim($parts['host'], '[]')) === false) {
             throw new \InvalidArgumentException('Invalid nameserver address given');
         }
 
diff --git a/src/Query/UdpTransportExecutor.php b/src/Query/UdpTransportExecutor.php
index 4687109c..4c995a86 100644
--- a/src/Query/UdpTransportExecutor.php
+++ b/src/Query/UdpTransportExecutor.php
@@ -106,7 +106,7 @@ public function __construct($nameserver, LoopInterface $loop = null)
         }
 
         $parts = \parse_url((\strpos($nameserver, '://') === false ? 'udp://' : '') . $nameserver);
-        if (!isset($parts['scheme'], $parts['host']) || $parts['scheme'] !== 'udp' || !\filter_var(\trim($parts['host'], '[]'), \FILTER_VALIDATE_IP)) {
+        if (!isset($parts['scheme'], $parts['host']) || $parts['scheme'] !== 'udp' || @\inet_pton(\trim($parts['host'], '[]')) === false) {
             throw new \InvalidArgumentException('Invalid nameserver address given');
         }