diff --git a/Cargo.toml b/Cargo.toml
index a67ebdc..3541bc7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -38,7 +38,7 @@ env_logger = "0.11"
 hashlink = "0.11"
 hickory-proto = "0.25"
 httparse = "1"
-ipstack = { version = "0.5" }
+ipstack = { version = "1" }
 log = { version = "0.4", features = ["std"] }
 mimalloc = { version = "0.1", default-features = false, optional = true }
 percent-encoding = "2"
diff --git a/src/lib.rs b/src/lib.rs
index dd3a1b6..f770c27 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -233,7 +233,7 @@ where
     };
 
     let mut ipstack_config = ipstack::IpStackConfig::default();
-    ipstack_config.mtu(mtu);
+    ipstack_config.mtu(mtu)?;
     let mut tcp_cfg = ipstack::TcpConfig::default();
     tcp_cfg.timeout = std::time::Duration::from_secs(args.tcp_timeout);
     ipstack_config.with_tcp_config(tcp_cfg);