diff --git a/Package.swift b/Package.swift
index 04ab9f9..7d654dc 100644
--- a/Package.swift
+++ b/Package.swift
@@ -229,9 +229,7 @@ var targets: [PackageDescription.Target] = [
             .product(name: "HTTPTypes", package: "swift-http-types"),
             .product(name: "Algorithms", package: "swift-algorithms"),
         ],
-        swiftSettings: [
-            .enableExperimentalFeature("StrictConcurrency")
-        ]
+        swiftSettings: strictConcurrencySettings
     ),
     .testTarget(
         name: "NIOHTTPResponsivenessTests",
@@ -242,9 +240,7 @@ var targets: [PackageDescription.Target] = [
             .product(name: "NIOEmbedded", package: "swift-nio"),
             .product(name: "HTTPTypes", package: "swift-http-types"),
         ],
-        swiftSettings: [
-            .enableExperimentalFeature("StrictConcurrency")
-        ]
+        swiftSettings: strictConcurrencySettings
     ),
 ]
 
diff --git a/Sources/NIOHTTPResponsiveness/HTTPDrippingDownloadHandler.swift b/Sources/NIOHTTPResponsiveness/HTTPDrippingDownloadHandler.swift
index 76588e5..e466808 100644
--- a/Sources/NIOHTTPResponsiveness/HTTPDrippingDownloadHandler.swift
+++ b/Sources/NIOHTTPResponsiveness/HTTPDrippingDownloadHandler.swift
@@ -253,3 +253,6 @@ public final class HTTPDrippingDownloadHandler: ChannelDuplexHandler {
         }
     }
 }
+
+@available(*, unavailable)
+extension HTTPDrippingDownloadHandler: Sendable {}
diff --git a/Sources/NIOHTTPResponsiveness/HTTPReceiveDiscardHandler.swift b/Sources/NIOHTTPResponsiveness/HTTPReceiveDiscardHandler.swift
index 8fba40d..5fea3cd 100644
--- a/Sources/NIOHTTPResponsiveness/HTTPReceiveDiscardHandler.swift
+++ b/Sources/NIOHTTPResponsiveness/HTTPReceiveDiscardHandler.swift
@@ -88,3 +88,6 @@ public final class HTTPReceiveDiscardHandler: ChannelInboundHandler {
         context.writeAndFlush(self.wrapOutboundOut(.end(nil)), promise: nil)
     }
 }
+
+@available(*, unavailable)
+extension HTTPReceiveDiscardHandler: Sendable {}
diff --git a/Sources/NIOHTTPResponsiveness/SimpleResponsivenessRequestMux.swift b/Sources/NIOHTTPResponsiveness/SimpleResponsivenessRequestMux.swift
index 6cc1ff2..7ccd499 100644
--- a/Sources/NIOHTTPResponsiveness/SimpleResponsivenessRequestMux.swift
+++ b/Sources/NIOHTTPResponsiveness/SimpleResponsivenessRequestMux.swift
@@ -143,3 +143,6 @@ public final class SimpleResponsivenessRequestMux: ChannelInboundHandler {
         context.writeAndFlush(self.wrapOutboundOut(.end(nil)), promise: nil)
     }
 }
+
+@available(*, unavailable)
+extension SimpleResponsivenessRequestMux: Sendable {}
diff --git a/Sources/NIOResumableUploadDemo/main.swift b/Sources/NIOResumableUploadDemo/main.swift
index 25373cc..b335e95 100644
--- a/Sources/NIOResumableUploadDemo/main.swift
+++ b/Sources/NIOResumableUploadDemo/main.swift
@@ -101,9 +101,11 @@ if #available(macOS 10.15.4, iOS 13.4, watchOS 6.2, tvOS 13.4, *) {
 
     let group = MultiThreadedEventLoopGroup(numberOfThreads: System.coreCount)
     let server = try ServerBootstrap(group: group).childChannelInitializer { channel in
-        channel.pipeline.configureHTTPServerPipeline().flatMap {
-            channel.pipeline.addHandlers([
-                HTTP1ToHTTPServerCodec(secure: false),
+        channel.eventLoop.makeCompletedFuture {
+            let sync = channel.pipeline.syncOperations
+            try sync.configureHTTPServerPipeline()
+            try sync.addHandler(HTTP1ToHTTPServerCodec(secure: false))
+            try sync.addHandler(
                 HTTPResumableUploadHandler(
                     context: uploadContext,
                     handlers: [
@@ -111,8 +113,8 @@ if #available(macOS 10.15.4, iOS 13.4, watchOS 6.2, tvOS 13.4, *) {
                             directory: URL(fileURLWithPath: CommandLine.arguments[1], isDirectory: true)
                         )
                     ]
-                ),
-            ])
+                )
+            )
         }
     }
     .bind(host: "0.0.0.0", port: 8080)