diff --git a/src/de/impls.rs b/src/de/impls.rs
index 3bb46c2..bf88847 100644
--- a/src/de/impls.rs
+++ b/src/de/impls.rs
@@ -9,6 +9,7 @@ use crate::{
 };
 use core::{
     cell::{Cell, RefCell},
+    cmp::Reverse,
     num::{
         NonZeroI128, NonZeroI16, NonZeroI32, NonZeroI64, NonZeroI8, NonZeroIsize, NonZeroU128,
         NonZeroU16, NonZeroU32, NonZeroU64, NonZeroU8, NonZeroUsize, Wrapping,
@@ -16,7 +17,6 @@ use core::{
     ops::{Bound, Range, RangeInclusive},
     time::Duration,
 };
-use std::cmp::Reverse;
 
 impl Decode for bool {
     fn decode<D: Decoder>(decoder: &mut D) -> Result<Self, DecodeError> {
diff --git a/src/enc/impls.rs b/src/enc/impls.rs
index a62e7bf..a2c518d 100644
--- a/src/enc/impls.rs
+++ b/src/enc/impls.rs
@@ -3,6 +3,7 @@ use crate::{
     config::{Endianness, IntEncoding, InternalEndianConfig, InternalIntEncodingConfig},
     error::EncodeError,
 };
+use core::cmp::Reverse;
 use core::{
     cell::{Cell, RefCell},
     marker::PhantomData,
@@ -13,7 +14,6 @@ use core::{
     ops::{Bound, Range, RangeInclusive},
     time::Duration,
 };
-use std::cmp::Reverse;
 
 impl Encode for () {
     fn encode<E: Encoder>(&self, _: &mut E) -> Result<(), EncodeError> {
diff --git a/tests/basic_types.rs b/tests/basic_types.rs
index af83cad..0aae093 100644
--- a/tests/basic_types.rs
+++ b/tests/basic_types.rs
@@ -2,9 +2,9 @@ mod utils;
 
 use bincode::error::DecodeError;
 use core::cell::{Cell, RefCell};
+use core::cmp::Reverse;
 use core::ops::Bound;
 use core::time::Duration;
-use std::cmp::Reverse;
 use std::num::*;
 use utils::{the_same, the_same_with_comparer};