diff --git a/ntex-io/src/dispatcher.rs b/ntex-io/src/dispatcher.rs
index e03a6901..84f40c12 100644
--- a/ntex-io/src/dispatcher.rs
+++ b/ntex-io/src/dispatcher.rs
@@ -1,4 +1,5 @@
 //! Framed transport dispatcher
+#![allow(clippy::let_underscore_future)]
 use std::{cell::Cell, future, pin::Pin, rc::Rc, task::Context, task::Poll};
 
 use ntex_bytes::Pool;
@@ -341,7 +342,7 @@ where
                     // call service
                     let shared = slf.shared.clone();
                     shared.inflight.set(shared.inflight.get() + 1);
-                    spawn(async move {
+                    let _ = spawn(async move {
                         let result = shared.service.call(item).await;
                         shared.handle_result(result, &shared.io);
                     });
@@ -365,7 +366,7 @@ where
                     // call service
                     let shared = slf.shared.clone();
                     shared.inflight.set(shared.inflight.get() + 1);
-                    spawn(async move {
+                    let _ = spawn(async move {
                         let result = shared.service.call(item).await;
                         shared.handle_result(result, &shared.io);
                     });
diff --git a/ntex-io/src/testing.rs b/ntex-io/src/testing.rs
index 590d6568..604b3627 100644
--- a/ntex-io/src/testing.rs
+++ b/ntex-io/src/testing.rs
@@ -1,4 +1,5 @@
 //! utilities and helpers for testing
+#![allow(clippy::let_underscore_future)]
 use std::future::{poll_fn, Future};
 use std::sync::{Arc, Mutex};
 use std::task::{ready, Context, Poll, Waker};
@@ -355,11 +356,11 @@ impl IoStream for IoTest {
     fn start(self, read: ReadContext, write: WriteContext) -> Option<Box<dyn Handle>> {
         let io = Rc::new(self);
 
-        ntex_util::spawn(ReadTask {
+        let _ = ntex_util::spawn(ReadTask {
             io: io.clone(),
             state: read,
         });
-        ntex_util::spawn(WriteTask {
+        let _ = ntex_util::spawn(WriteTask {
             io: io.clone(),
             state: write,
             st: IoWriteState::Processing(None),
diff --git a/ntex-io/src/timer.rs b/ntex-io/src/timer.rs
index 5af6079a..b30f6182 100644
--- a/ntex-io/src/timer.rs
+++ b/ntex-io/src/timer.rs
@@ -127,7 +127,8 @@ pub(crate) fn register(timeout: Seconds, io: &IoRef) -> TimerHandle {
         if !timer.running.get() {
             timer.running.set(true);
 
-            spawn(async move {
+            #[allow(clippy::let_underscore_future)]
+            let _ = spawn(async move {
                 let guard = TimerGuard;
                 loop {
                     sleep(SEC).await;
diff --git a/ntex-rt/src/arbiter.rs b/ntex-rt/src/arbiter.rs
index e870eebb..f81a49be 100644
--- a/ntex-rt/src/arbiter.rs
+++ b/ntex-rt/src/arbiter.rs
@@ -1,3 +1,4 @@
+#![allow(clippy::let_underscore_future)]
 use std::any::{Any, TypeId};
 use std::sync::atomic::{AtomicUsize, Ordering};
 use std::task::{Context, Poll};
@@ -103,7 +104,7 @@ impl Arbiter {
 
                 crate::block_on(async move {
                     // start arbiter controller
-                    crate::spawn(ArbiterController {
+                    let _ = crate::spawn(ArbiterController {
                         stop: Some(stop),
                         rx: Box::pin(arb_rx),
                     });
@@ -268,7 +269,7 @@ impl Future for ArbiterController {
                         return Poll::Ready(());
                     }
                     ArbiterCommand::Execute(fut) => {
-                        crate::spawn(fut);
+                        let _ = crate::spawn(fut);
                     }
                     ArbiterCommand::ExecuteFn(f) => {
                         f.call_box();
diff --git a/ntex-rt/src/builder.rs b/ntex-rt/src/builder.rs
index a49a1722..55db7bd0 100644
--- a/ntex-rt/src/builder.rs
+++ b/ntex-rt/src/builder.rs
@@ -1,3 +1,4 @@
+#![allow(clippy::let_underscore_future)]
 use std::{cell::RefCell, future::Future, io, rc::Rc};
 
 use async_channel::unbounded;
@@ -159,8 +160,8 @@ where
     let result = Rc::new(RefCell::new(None));
     let result_inner = result.clone();
     crate::block_on(Box::pin(async move {
-        crate::spawn(arb);
-        crate::spawn(arb_controller);
+        let _ = crate::spawn(arb);
+        let _ = crate::spawn(arb_controller);
         if let Err(e) = f() {
             *result_inner.borrow_mut() = Some(Err(e));
         } else {
diff --git a/ntex-util/src/time/wheel.rs b/ntex-util/src/time/wheel.rs
index 93453956..b22538f3 100644
--- a/ntex-util/src/time/wheel.rs
+++ b/ntex-util/src/time/wheel.rs
@@ -1,7 +1,7 @@
 //! Time wheel based timer service.
 //!
 //! Inspired by linux kernel timers system
-#![allow(arithmetic_overflow)]
+#![allow(arithmetic_overflow, clippy::let_underscore_future)]
 use std::cell::{Cell, RefCell};
 use std::time::{Duration, Instant, SystemTime};
 use std::{cmp::max, future::Future, mem, pin::Pin, rc::Rc, task, task::Poll};
@@ -611,7 +611,7 @@ impl TimerDriver {
         timer.inner.borrow_mut().driver_sleep =
             Delay::new(Duration::from_millis(timer.next_expiry_ms()));
 
-        crate::spawn(TimerDriver(timer));
+        let _ = crate::spawn(TimerDriver(timer));
     }
 }
 
@@ -676,7 +676,7 @@ impl LowresTimerDriver {
         timer.flags.set(flags);
         timer.inner.borrow_mut().lowres_driver_sleep = Delay::new(LOWRES_RESOLUTION);
 
-        crate::spawn(LowresTimerDriver(timer));
+        let _ = crate::spawn(LowresTimerDriver(timer));
     }
 }