diff --git a/examples/live_federation/main.rs b/examples/live_federation/main.rs
index 5e509b5..dc593b1 100644
--- a/examples/live_federation/main.rs
+++ b/examples/live_federation/main.rs
@@ -12,8 +12,10 @@ use axum::{
     Router,
 };
 use error::Error;
-use std::sync::{Arc, Mutex};
-use tokio::net::TcpListener;
+use std::{
+    net::ToSocketAddrs,
+    sync::{Arc, Mutex},
+};
 use tracing::log::{info, LevelFilter};
 
 mod activities;
@@ -58,8 +60,12 @@ async fn main() -> Result<(), Error> {
         .route("/.well-known/webfinger", get(webfinger))
         .layer(FederationMiddleware::new(config));
 
-    let addr = TcpListener::bind(BIND_ADDRESS).await?;
-    axum::serve(addr, app.into_make_service()).await?;
+    let addr = BIND_ADDRESS
+        .to_socket_addrs()?
+        .next()
+        .expect("Failed to lookup domain name");
+    let listener = tokio::net::TcpListener::bind(addr).await?;
+    axum::serve(listener, app.into_make_service()).await?;
 
     Ok(())
 }
diff --git a/examples/local_federation/axum/http.rs b/examples/local_federation/axum/http.rs
index 3ac72f6..dd9d002 100644
--- a/examples/local_federation/axum/http.rs
+++ b/examples/local_federation/axum/http.rs
@@ -22,7 +22,7 @@ use axum::{
     Router,
 };
 use serde::Deserialize;
-use std::net::TcpListener;
+use std::net::ToSocketAddrs;
 use tracing::info;
 
 pub fn listen(config: &FederationConfig<DatabaseHandle>) -> Result<(), Error> {
@@ -35,10 +35,18 @@ pub fn listen(config: &FederationConfig<DatabaseHandle>) -> Result<(), Error> {
         .route("/.well-known/webfinger", get(webfinger))
         .layer(FederationMiddleware::new(config));
 
-    let addr = tokio::net::TcpListener::from_std(TcpListener::bind(hostname)?)?;
-    let server = axum::serve(addr, app.into_make_service());
+    let addr = hostname
+        .to_socket_addrs()?
+        .next()
+        .expect("Failed to lookup domain name");
+    let fut = async move {
+        let listener = tokio::net::TcpListener::bind(addr).await.unwrap();
+        axum::serve(listener, app.into_make_service())
+            .await
+            .unwrap();
+    };
 
-    tokio::spawn(async move { server.await.unwrap() });
+    tokio::spawn(fut);
     Ok(())
 }
 
diff --git a/src/activity_queue.rs b/src/activity_queue.rs
index ad25402..c666e7a 100644
--- a/src/activity_queue.rs
+++ b/src/activity_queue.rs
@@ -424,7 +424,6 @@ mod tests {
     use bytes::Bytes;
     use http::{HeaderMap, StatusCode};
     use std::time::Instant;
-    use tokio::net::TcpListener;
     use tracing::debug;
 
     // This will periodically send back internal errors to test the retry
@@ -452,12 +451,10 @@ mod tests {
             .route("/", post(dodgy_handler))
             .with_state(state);
 
-        axum::serve(
-            TcpListener::bind("0.0.0.0:8002").await.unwrap(),
-            app.into_make_service(),
-        )
-        .await
-        .unwrap();
+        let listener = tokio::net::TcpListener::bind("0.0.0.0:8002").await.unwrap();
+        axum::serve(listener, app.into_make_service())
+            .await
+            .unwrap();
     }
 
     #[tokio::test(flavor = "multi_thread")]
diff --git a/src/activity_sending.rs b/src/activity_sending.rs
index 46c1440..4971485 100644
--- a/src/activity_sending.rs
+++ b/src/activity_sending.rs
@@ -242,7 +242,6 @@ mod tests {
         sync::{atomic::AtomicUsize, Arc},
         time::Instant,
     };
-    use tokio::net::TcpListener;
     use tracing::info;
 
     // This will periodically send back internal errors to test the retry
@@ -262,12 +261,10 @@ mod tests {
             .route("/", post(dodgy_handler))
             .with_state(state);
 
-        axum::serve(
-            TcpListener::bind("0.0.0.0:8001").await.unwrap(),
-            app.into_make_service(),
-        )
-        .await
-        .unwrap();
+        let listener = tokio::net::TcpListener::bind("0.0.0.0:8001").await.unwrap();
+        axum::serve(listener, app.into_make_service())
+            .await
+            .unwrap();
     }
 
     #[tokio::test(flavor = "multi_thread")]
diff --git a/src/config.rs b/src/config.rs
index 608539a..b120ba9 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -26,7 +26,6 @@ use bytes::Bytes;
 use derive_builder::Builder;
 use dyn_clone::{clone_trait_object, DynClone};
 use moka::future::Cache;
-use once_cell::sync::Lazy;
 use regex::Regex;
 use reqwest::{redirect::Policy, Client, Request};
 use reqwest_middleware::{ClientWithMiddleware, RequestBuilder};
@@ -38,6 +37,7 @@ use std::{
     sync::{
         atomic::{AtomicU32, Ordering},
         Arc,
+        LazyLock,
     },
     time::Duration,
 };
@@ -114,8 +114,8 @@ pub struct FederationConfig<T: Clone> {
     pub(crate) queue_retry_count: usize,
 }
 
-pub(crate) static DOMAIN_REGEX: Lazy<Regex> =
-    Lazy::new(|| Regex::new(r"^[a-zA-Z0-9.-]*$").expect("compile regex"));
+pub(crate) static DOMAIN_REGEX: LazyLock<Regex> =
+    LazyLock::new(|| Regex::new(r"^[a-zA-Z0-9.-]*$").expect("compile regex"));
 
 impl<T: Clone> FederationConfig<T> {
     /// Returns a new config builder with default values.
diff --git a/src/lib.rs b/src/lib.rs
index 998d00c..c53fec8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -31,6 +31,7 @@ use crate::{
     traits::{ActivityHandler, Actor, Object},
 };
 pub use activitystreams_kinds as kinds;
+pub use serde_json;
 
 use serde::{de::DeserializeOwned, Deserialize};
 use url::Url;