diff --git a/src/unix/apple/system.rs b/src/unix/apple/system.rs
index 2d5014f8c..44406f623 100644
--- a/src/unix/apple/system.rs
+++ b/src/unix/apple/system.rs
@@ -89,9 +89,9 @@ pub(crate) struct SystemInner {
 pub(crate) struct Wrap<'a>(pub UnsafeCell<&'a mut HashMap<Pid, Process>>);
 
 #[cfg(all(target_os = "macos", not(feature = "apple-sandbox")))]
-unsafe impl<'a> Send for Wrap<'a> {}
+unsafe impl Send for Wrap<'_> {}
 #[cfg(all(target_os = "macos", not(feature = "apple-sandbox")))]
-unsafe impl<'a> Sync for Wrap<'a> {}
+unsafe impl Sync for Wrap<'_> {}
 
 fn boot_time() -> u64 {
     let mut boot_time = timeval {
diff --git a/src/unix/freebsd/utils.rs b/src/unix/freebsd/utils.rs
index 7e6d00bfc..6aa611f01 100644
--- a/src/unix/freebsd/utils.rs
+++ b/src/unix/freebsd/utils.rs
@@ -223,9 +223,9 @@ pub(crate) struct WrapMap<'a>(
 );
 
 #[cfg(feature = "system")]
-unsafe impl<'a> Send for WrapMap<'a> {}
+unsafe impl Send for WrapMap<'_> {}
 #[cfg(feature = "system")]
-unsafe impl<'a> Sync for WrapMap<'a> {}
+unsafe impl Sync for WrapMap<'_> {}
 
 #[cfg(feature = "system")]
 #[repr(transparent)]
diff --git a/src/unix/linux/process.rs b/src/unix/linux/process.rs
index cd2a5d056..c7c2307be 100644
--- a/src/unix/linux/process.rs
+++ b/src/unix/linux/process.rs
@@ -351,8 +351,8 @@ impl<'a, T> Wrap<'a, T> {
 }
 
 #[allow(clippy::non_send_fields_in_send_ty)]
-unsafe impl<'a, T> Send for Wrap<'a, T> {}
-unsafe impl<'a, T> Sync for Wrap<'a, T> {}
+unsafe impl<T> Send for Wrap<'_, T> {}
+unsafe impl<T> Sync for Wrap<'_, T> {}
 
 #[inline(always)]
 fn compute_start_time_without_boot_time(parts: &Parts<'_>, info: &SystemInfo) -> u64 {