diff --git a/src/lib.rs b/src/lib.rs
index 9ad6c6d..c0cb76a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -333,7 +333,7 @@ pub struct ProtoStackIter<'a> {
     parts: Iter<'a>,
 }
 
-impl<'a> Iterator for ProtoStackIter<'a> {
+impl Iterator for ProtoStackIter<'_> {
     type Item = &'static str;
     fn next(&mut self) -> Option<Self::Item> {
         self.parts.next().as_ref().map(Protocol::tag)
diff --git a/src/onion_addr.rs b/src/onion_addr.rs
index 08cedb7..3800452 100644
--- a/src/onion_addr.rs
+++ b/src/onion_addr.rs
@@ -4,7 +4,7 @@ use std::{borrow::Cow, fmt};
 #[derive(Clone)]
 pub struct Onion3Addr<'a>(Cow<'a, [u8; 35]>, u16);
 
-impl<'a> Onion3Addr<'a> {
+impl Onion3Addr<'_> {
     /// Return the hash of the public key as bytes
     pub fn hash(&self) -> &[u8; 35] {
         self.0.as_ref()
diff --git a/src/protocol.rs b/src/protocol.rs
index d6e85e9..f0fa1d4 100644
--- a/src/protocol.rs
+++ b/src/protocol.rs
@@ -725,7 +725,7 @@ impl<'a> Protocol<'a> {
     }
 }
 
-impl<'a> fmt::Display for Protocol<'a> {
+impl fmt::Display for Protocol<'_> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         use self::Protocol::*;
         write!(f, "/{}", self.tag())?;
@@ -788,7 +788,7 @@ impl<'a> fmt::Display for Protocol<'a> {
     }
 }
 
-impl<'a> From<IpAddr> for Protocol<'a> {
+impl From<IpAddr> for Protocol<'_> {
     #[inline]
     fn from(addr: IpAddr) -> Self {
         match addr {
@@ -798,14 +798,14 @@ impl<'a> From<IpAddr> for Protocol<'a> {
     }
 }
 
-impl<'a> From<Ipv4Addr> for Protocol<'a> {
+impl From<Ipv4Addr> for Protocol<'_> {
     #[inline]
     fn from(addr: Ipv4Addr) -> Self {
         Protocol::Ip4(addr)
     }
 }
 
-impl<'a> From<Ipv6Addr> for Protocol<'a> {
+impl From<Ipv6Addr> for Protocol<'_> {
     #[inline]
     fn from(addr: Ipv6Addr) -> Self {
         Protocol::Ip6(addr)