diff --git a/src/copy_bidirectional.rs b/src/copy_bidirectional.rs
index 7d2ef62d..fc994318 100644
--- a/src/copy_bidirectional.rs
+++ b/src/copy_bidirectional.rs
@@ -215,7 +215,7 @@ where
     }
 }
 
-impl<'a, A, B> Future for CopyBidirectional<'a, A, B>
+impl<A, B> Future for CopyBidirectional<'_, A, B>
 where
     A: AsyncStream + ?Sized,
     B: AsyncStream + ?Sized,
diff --git a/src/copy_bidirectional_message.rs b/src/copy_bidirectional_message.rs
index 9db71d06..6b849061 100644
--- a/src/copy_bidirectional_message.rs
+++ b/src/copy_bidirectional_message.rs
@@ -188,7 +188,7 @@ where
     }
 }
 
-impl<'a, A, B> Future for CopyBidirectional<'a, A, B>
+impl<A, B> Future for CopyBidirectional<'_, A, B>
 where
     A: AsyncMessageStream + ?Sized,
     B: AsyncMessageStream + ?Sized,
diff --git a/src/copy_multidirectional_message.rs b/src/copy_multidirectional_message.rs
index e56868c5..e0d37b0c 100644
--- a/src/copy_multidirectional_message.rs
+++ b/src/copy_multidirectional_message.rs
@@ -365,7 +365,7 @@ where
     }
 }
 
-impl<'a, A, B> Future for CopyMultidirectional<'a, A, B>
+impl<A, B> Future for CopyMultidirectional<'_, A, B>
 where
     A: AsyncTargetedMessageStream + ?Sized,
     B: AsyncSourcedMessageStream + ?Sized,