diff --git a/Cargo.lock b/Cargo.lock
index e27b06a..950024b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -660,10 +660,9 @@ dependencies = [
 
 [[package]]
 name = "delfin"
-version = "0.2.1"
+version = "0.3.0"
 dependencies = [
  "anyhow",
- "async-trait",
  "bytes",
  "chrono",
  "derive_builder",
diff --git a/delfin/Cargo.toml b/delfin/Cargo.toml
index a49909c..24a38e6 100644
--- a/delfin/Cargo.toml
+++ b/delfin/Cargo.toml
@@ -10,7 +10,6 @@ gst = ["dep:video_player_gst"]
 
 [dependencies]
 anyhow = "1.0.75"
-async-trait = "0.1.75"
 bytes = "1.5.0"
 chrono = "0.4.31"
 derive_builder = "0.12.0"
diff --git a/delfin/src/library/collection.rs b/delfin/src/library/collection.rs
index 3b3b3cc..8427542 100644
--- a/delfin/src/library/collection.rs
+++ b/delfin/src/library/collection.rs
@@ -1,7 +1,6 @@
 use std::sync::Arc;
 
 use anyhow::Result;
-use async_trait::async_trait;
 use gtk::prelude::*;
 use jellyfin_api::types::BaseItemDto;
 use relm4::prelude::*;
@@ -79,7 +78,6 @@ struct ViewItemsFetcher {
     view: UserView,
 }
 
-#[async_trait]
 impl Fetcher for ViewItemsFetcher {
     async fn fetch(&self, start_index: usize, limit: usize) -> Result<(Vec<BaseItemDto>, usize)> {
         self.api_client
diff --git a/delfin/src/library/media_fetcher.rs b/delfin/src/library/media_fetcher.rs
index d1294f3..c1e798a 100644
--- a/delfin/src/library/media_fetcher.rs
+++ b/delfin/src/library/media_fetcher.rs
@@ -1,5 +1,7 @@
 use std::{
     cmp,
+    future::Future,
+    marker::Send,
     sync::{
         atomic::{AtomicUsize, Ordering},
         Arc,
@@ -7,7 +9,6 @@ use std::{
 };
 
 use anyhow::{Error, Result};
-use async_trait::async_trait;
 use jellyfin_api::types::BaseItemDto;
 use tokio::{sync::mpsc::UnboundedSender, task::JoinHandle};
 
@@ -152,9 +153,12 @@ impl<F: Fetcher + Send + Sync + 'static> MediaFetcher<F> {
     }
 }
 
-#[async_trait]
 pub trait Fetcher {
-    async fn fetch(&self, start_index: usize, limit: usize) -> Result<(Vec<BaseItemDto>, usize)>;
+    fn fetch(
+        &self,
+        start_index: usize,
+        limit: usize,
+    ) -> impl Future<Output = Result<(Vec<BaseItemDto>, usize)>> + Send;
 
     fn title(&self) -> String;
 }
diff --git a/delfin/src/library/search/search_results.rs b/delfin/src/library/search/search_results.rs
index aacf29e..9897950 100644
--- a/delfin/src/library/search/search_results.rs
+++ b/delfin/src/library/search/search_results.rs
@@ -1,7 +1,6 @@
 use std::sync::Arc;
 
 use anyhow::Result;
-use async_trait::async_trait;
 use gtk::prelude::*;
 use jellyfin_api::types::BaseItemDto;
 use relm4::{adw::traits::ActionRowExt, gtk::traits::BoxExt, prelude::*};
@@ -101,7 +100,6 @@ struct SearchResultsFetcher {
     search_text: String,
 }
 
-#[async_trait]
 impl Fetcher for SearchResultsFetcher {
     async fn fetch(&self, start_index: usize, limit: usize) -> Result<(Vec<BaseItemDto>, usize)> {
         self.api_client