diff --git a/Package.resolved b/Package.resolved
index 1882b84..f0ca62b 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -1,13 +1,13 @@
 {
-  "originHash" : "b9c18f2e4b8931147b1597352bc90fd7fe0722787786324795b04587c0e043c4",
+  "originHash" : "9a4c382199c7431879a090851af1c5c8163bad517a2227c837b67d0e8fd75f28",
   "pins" : [
     {
       "identity" : "async-http-client",
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/swift-server/async-http-client.git",
       "state" : {
-        "revision" : "291438696abdd48d2a83b52465c176efbd94512b",
-        "version" : "1.20.1"
+        "revision" : "a22083713ee90808d527d0baa290c2fb13ca3096",
+        "version" : "1.21.1"
       }
     },
     {
@@ -42,8 +42,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-http-types",
       "state" : {
-        "revision" : "12358d55a3824bd5fed310b999ea8cf83a9a1a65",
-        "version" : "1.0.3"
+        "revision" : "9bee2fdb79cc740081abd8ebd80738063d632286",
+        "version" : "1.1.0"
       }
     },
     {
@@ -60,8 +60,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-nio.git",
       "state" : {
-        "revision" : "fc63f0cf4e55a4597407a9fc95b16a2bc44b4982",
-        "version" : "2.64.0"
+        "revision" : "9428f62793696d9a0cc1f26a63f63bb31da0516d",
+        "version" : "2.66.0"
       }
     },
     {
@@ -78,8 +78,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-nio-http2.git",
       "state" : {
-        "revision" : "0904bf0feb5122b7e5c3f15db7df0eabe623dd87",
-        "version" : "1.30.0"
+        "revision" : "8d8eb609929aee75336a0a3d2417280786265868",
+        "version" : "1.32.0"
       }
     },
     {
@@ -87,8 +87,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-nio-ssl.git",
       "state" : {
-        "revision" : "7c381eb6083542b124a6c18fae742f55001dc2b5",
-        "version" : "2.26.0"
+        "revision" : "2b09805797f21c380f7dc9bedaab3157c5508efb",
+        "version" : "2.27.0"
       }
     },
     {
@@ -96,8 +96,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-nio-transport-services.git",
       "state" : {
-        "revision" : "6cbe0ed2b394f21ab0d46b9f0c50c6be964968ce",
-        "version" : "1.20.1"
+        "revision" : "38ac8221dd20674682148d6451367f89c2652980",
+        "version" : "1.21.0"
       }
     },
     {
@@ -114,8 +114,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-system.git",
       "state" : {
-        "revision" : "025bcb1165deab2e20d4eaba79967ce73013f496",
-        "version" : "1.2.1"
+        "revision" : "f9266c85189c2751589a50ea5aec72799797e471",
+        "version" : "1.3.0"
       }
     }
   ],
diff --git a/Package.swift b/Package.swift
index b3e8378..77af535 100644
--- a/Package.swift
+++ b/Package.swift
@@ -7,7 +7,7 @@ let package = Package(
         .macOS(.v14),
     ],
     dependencies: [
-        .package(url: "https://github.com/swift-server/async-http-client.git", from: "1.9.0")
+        .package(url: "https://github.com/swift-server/async-http-client.git", from: "1.21.0")
     ],
     targets: [
         .executableTarget(
diff --git a/Sources/main.swift b/Sources/main.swift
index 1d3afec..173e0ea 100644
--- a/Sources/main.swift
+++ b/Sources/main.swift
@@ -9,52 +9,37 @@ struct Entrypoint {
         try await example2()
         try await example3()
     }
-    
+
     // MARK: -
 
     static func example1() async throws {
-
-        let httpClient = HTTPClient(
-            eventLoopGroupProvider: .singleton
-        )
         
-        do {
-            var request = HTTPClientRequest(
-                url: "https://httpbin.org/post"
-            )
-            request.method = .POST
-            request.headers.add(name: "User-Agent", value: "Swift AsyncHTTPClient")
-            request.body = .bytes(ByteBuffer(string: "Some data"))
-            
-            let response = try await httpClient.execute(
-                request,
-                timeout: .seconds(5)
-            )
-            
-            if response.status == .ok {
-                let contentType = response.headers.first(
-                    name: "content-type"
-                )
-                print("\(contentType ?? "")")
-
-                let contentLength = response.headers.first(
-                    name: "content-length"
-                ).flatMap(Int.init)
-                print("\(contentLength ?? -1)")
+        var request = HTTPClientRequest(url: "https://httpbin.org/post")
+        request.method = .POST
+        request.headers.add(name: "User-Agent", value: "Swift AsyncHTTPClient")
+        request.body = .bytes(ByteBuffer(string: "Some data"))
+        
+        let response = try await HTTPClient.shared.execute(
+            request,
+            timeout: .seconds(5)
+        )
 
-                let buffer = try await response.body.collect(upTo: 1024 * 1024)
-                let rawResponseBody = buffer.getString(
-                    at: 0,
-                    length: buffer.readableBytes
-                )
-                print("\(rawResponseBody ?? "")")
-            }
-        }
-        catch {
-            print("\(error)")
+        guard response.status == .ok else {
+            print("Invalid status code: \(response.status)")
+            return
         }
+        let contentType = response.headers.first(name: "content-type")
+        print("\(contentType ?? "")")
+
+        let contentLength = response.headers.first(
+            name: "content-length"
+        ).flatMap(Int.init)
 
-        try await httpClient.shutdown()
+        print("\(contentLength ?? -1)")
+
+        let buffer = try await response.body.collect(upTo: 1024 * 1024)
+        let rawResponseBody = String(buffer: buffer)
+        print("\(rawResponseBody)")
     }
     
     // MARK: -
@@ -71,94 +56,73 @@ struct Entrypoint {
             let json: Input
         }
 
-        let httpClient = HTTPClient(
-            eventLoopGroupProvider: .singleton
+        var request = HTTPClientRequest(url: "https://httpbin.org/post")
+        request.method = .POST
+        request.headers.add(name: "content-type", value: "application/json")
+        
+        let input = Input(
+            id: 1,
+            title: "foo",
+            completed: false
         )
-        do {
-            var request = HTTPClientRequest(
-                url: "https://httpbin.org/post"
-            )
-            request.method = .POST
-            request.headers.add(name: "content-type", value: "application/json")
-            
-            let input = Input(
-                id: 1,
-                title: "foo",
-                completed: false
-            )
-            
-            let encoder = JSONEncoder()
-            let data = try encoder.encode(input)
-            let buffer = ByteBuffer(bytes: data)
-            request.body = .bytes(buffer)
-            
-            let response = try await httpClient.execute(
-                request,
-                timeout: .seconds(5)
-            )
-            
-            if response.status == .ok {
-                if let contentType = response.headers.first(
-                    name: "content-type"
-                ), contentType.contains("application/json") {
-                    var buffer: ByteBuffer = .init()
-                    for try await var chunk in response.body {
-                        buffer.writeBuffer(&chunk)
-                    }
-                    
-                    let decoder = JSONDecoder()
-                    if let data = buffer.getData(at: 0, length: buffer.readableBytes) {
-                        let output = try decoder.decode(Output.self, from: data)
-                        print(output.json.title)
-                    }
-                }
-
-            }
-            else {
-                print("Invalid status code: \(response.status)")
-            }
+        
+        let encoder = JSONEncoder()
+        let data = try encoder.encode(input)
+        request.body = .bytes(.init(bytes: data))
+        
+        let response = try await HTTPClient.shared.execute(
+            request,
+            timeout: .seconds(5)
+        )
+        
+        guard response.status == .ok else {
+            print("Invalid status code: \(response.status)")
+            return
+        }
+        guard
+            let contentType = response.headers.first(name: "content-type"),
+            contentType.contains("application/json")
+        else {
+            print("Invalid content type.")
+            return
         }
-        catch {
-            print("\(error)")
+
+        var buffer: ByteBuffer = .init()
+        for try await var chunk in response.body {
+            buffer.writeBuffer(&chunk)
         }
         
-        try await httpClient.shutdown()
+        let decoder = JSONDecoder()
+        let output = try decoder.decode(Output.self, from: buffer)
+        print(output.json.title)
     }
     
     // MARK: -
     
     static func example3() async throws {
         
-        let httpClient = HTTPClient(
-            eventLoopGroupProvider: .singleton
+        let delegate = try FileDownloadDelegate(
+            path: NSTemporaryDirectory() + "600x400.png",
+            reportProgress: {
+                if let totalBytes = $0.totalBytes {
+                    print("Total: \(totalBytes).")
+                }
+                print("Downloaded: \($0.receivedBytes).")
+            }
         )
 
-        do {
-            let delegate = try FileDownloadDelegate(
-                path: NSTemporaryDirectory() + "600x400.png",
-                reportProgress: {
-                    if let totalBytes = $0.totalBytes {
-                        print("Total: \(totalBytes).")
-                    }
-                    print("Downloaded: \($0.receivedBytes).")
-                }
-            )
-            
-            let fileDownloadResponse = try await httpClient.execute(
-                request: .init(
-                    url: "https://placehold.co/600x400.png"
-                ),
-                delegate: delegate
-            ).futureResult.get()
-            
-            print(fileDownloadResponse)
-        }
-        catch {
-            print("\(error)")
-        }
+        let fileDownloadResponse = try await HTTPClient.shared.execute(
+            request: .init(url: "https://placehold.co/600x400.png"),
+            delegate: delegate
+        ).futureResult.get()
         
-        try await httpClient.shutdown()
+        print(fileDownloadResponse)
     }
 }
 
-try await Entrypoint.main()
+do {
+    try await Entrypoint.main()
+}
+catch {
+    fatalError("\(error)")
+}