diff --git a/src/lib.rs b/src/lib.rs
index 8f593163..6c0c3918 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -389,7 +389,7 @@ impl RecvFlags {
 #[repr(transparent)]
 pub struct MaybeUninitSlice<'a>(sys::MaybeUninitSlice<'a>);
 
-impl<'a> fmt::Debug for MaybeUninitSlice<'a> {
+impl fmt::Debug for MaybeUninitSlice<'_> {
     fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
         fmt::Debug::fmt(self.0.as_slice(), fmt)
     }
@@ -406,7 +406,7 @@ impl<'a> MaybeUninitSlice<'a> {
     }
 }
 
-impl<'a> Deref for MaybeUninitSlice<'a> {
+impl Deref for MaybeUninitSlice<'_> {
     type Target = [MaybeUninit<u8>];
 
     fn deref(&self) -> &[MaybeUninit<u8>] {
@@ -414,7 +414,7 @@ impl<'a> Deref for MaybeUninitSlice<'a> {
     }
 }
 
-impl<'a> DerefMut for MaybeUninitSlice<'a> {
+impl DerefMut for MaybeUninitSlice<'_> {
     fn deref_mut(&mut self) -> &mut [MaybeUninit<u8>] {
         self.0.as_mut_slice()
     }
@@ -659,7 +659,7 @@ impl<'addr, 'bufs, 'control> MsgHdr<'addr, 'bufs, 'control> {
 }
 
 #[cfg(not(target_os = "redox"))]
-impl<'name, 'bufs, 'control> fmt::Debug for MsgHdr<'name, 'bufs, 'control> {
+impl fmt::Debug for MsgHdr<'_, '_, '_> {
     fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
         "MsgHdr".fmt(fmt)
     }
@@ -736,7 +736,7 @@ impl<'addr, 'bufs, 'control> MsgHdrMut<'addr, 'bufs, 'control> {
 }
 
 #[cfg(not(target_os = "redox"))]
-impl<'name, 'bufs, 'control> fmt::Debug for MsgHdrMut<'name, 'bufs, 'control> {
+impl fmt::Debug for MsgHdrMut<'_, '_, '_> {
     fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
         "MsgHdrMut".fmt(fmt)
     }
diff --git a/src/socket.rs b/src/socket.rs
index e6cdca24..8b8ec46e 100644
--- a/src/socket.rs
+++ b/src/socket.rs
@@ -2324,7 +2324,7 @@ impl Read for Socket {
     }
 }
 
-impl<'a> Read for &'a Socket {
+impl Read for &Socket {
     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
         // Safety: see other `Read::read` impl.
         let buf = unsafe { &mut *(buf as *mut [u8] as *mut [MaybeUninit<u8>]) };
@@ -2354,7 +2354,7 @@ impl Write for Socket {
     }
 }
 
-impl<'a> Write for &'a Socket {
+impl Write for &Socket {
     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
         self.send(buf)
     }
diff --git a/src/sockref.rs b/src/sockref.rs
index 94b84dd4..02bb339c 100644
--- a/src/sockref.rs
+++ b/src/sockref.rs
@@ -68,7 +68,7 @@ pub struct SockRef<'s> {
     _lifetime: PhantomData<&'s Socket>,
 }
 
-impl<'s> Deref for SockRef<'s> {
+impl Deref for SockRef<'_> {
     type Target = Socket;
 
     fn deref(&self) -> &Self::Target {
diff --git a/src/sys/unix.rs b/src/sys/unix.rs
index 05cb2e91..2a3d6737 100644
--- a/src/sys/unix.rs
+++ b/src/sys/unix.rs
@@ -662,9 +662,9 @@ pub struct MaybeUninitSlice<'a> {
     _lifetime: PhantomData<&'a mut [MaybeUninit<u8>]>,
 }
 
-unsafe impl<'a> Send for MaybeUninitSlice<'a> {}
+unsafe impl Send for MaybeUninitSlice<'_> {}
 
-unsafe impl<'a> Sync for MaybeUninitSlice<'a> {}
+unsafe impl Sync for MaybeUninitSlice<'_> {}
 
 impl<'a> MaybeUninitSlice<'a> {
     pub(crate) fn new(buf: &'a mut [MaybeUninit<u8>]) -> MaybeUninitSlice<'a> {