diff --git a/src/primitives/checksum.rs b/src/primitives/checksum.rs
index 7b3729e4..44091f04 100644
--- a/src/primitives/checksum.rs
+++ b/src/primitives/checksum.rs
@@ -227,7 +227,7 @@ impl<'a, ExtField> PrintImpl<'a, ExtField> {
     }
 }
 
-impl<'a, ExtField> fmt::Display for PrintImpl<'a, ExtField>
+impl<ExtField> fmt::Display for PrintImpl<'_, ExtField>
 where
     ExtField: super::Bech32Field + super::ExtensionField<BaseField = Fe32>,
 {
@@ -466,7 +466,7 @@ impl<'hrp> HrpFe32Iter<'hrp> {
     }
 }
 
-impl<'hrp> Iterator for HrpFe32Iter<'hrp> {
+impl Iterator for HrpFe32Iter<'_> {
     type Item = Fe32;
     #[inline]
     fn next(&mut self) -> Option<Fe32> {
diff --git a/src/primitives/correction.rs b/src/primitives/correction.rs
index e965f8ec..a6ce93b9 100644
--- a/src/primitives/correction.rs
+++ b/src/primitives/correction.rs
@@ -262,7 +262,7 @@ pub struct ErrorIterator<'c, Ck: Checksum> {
     c: usize,
 }
 
-impl<'c, Ck: Checksum> Iterator for ErrorIterator<'c, Ck> {
+impl<Ck: Checksum> Iterator for ErrorIterator<'_, Ck> {
     type Item = (usize, Fe32);
 
     fn next(&mut self) -> Option<Self::Item> {
diff --git a/src/primitives/decode.rs b/src/primitives/decode.rs
index 213e6cdb..4f1d530a 100644
--- a/src/primitives/decode.rs
+++ b/src/primitives/decode.rs
@@ -709,7 +709,7 @@ pub struct ByteIter<'s> {
     iter: FesToBytes<AsciiToFe32Iter<'s>>,
 }
 
-impl<'s> Iterator for ByteIter<'s> {
+impl Iterator for ByteIter<'_> {
     type Item = u8;
     #[inline]
     fn next(&mut self) -> Option<u8> { self.iter.next() }
@@ -717,7 +717,7 @@ impl<'s> Iterator for ByteIter<'s> {
     fn size_hint(&self) -> (usize, Option<usize>) { self.iter.size_hint() }
 }
 
-impl<'s> ExactSizeIterator for ByteIter<'s> {
+impl ExactSizeIterator for ByteIter<'_> {
     #[inline]
     fn len(&self) -> usize { self.iter.len() }
 }
@@ -733,7 +733,7 @@ pub struct AsciiToFe32Iter<'s> {
     iter: iter::Copied<slice::Iter<'s, u8>>,
 }
 
-impl<'s> Iterator for AsciiToFe32Iter<'s> {
+impl Iterator for AsciiToFe32Iter<'_> {
     type Item = Fe32;
     #[inline]
     fn next(&mut self) -> Option<Fe32> { self.iter.next().map(Fe32::from_char_unchecked) }
@@ -744,7 +744,7 @@ impl<'s> Iterator for AsciiToFe32Iter<'s> {
     }
 }
 
-impl<'s> ExactSizeIterator for AsciiToFe32Iter<'s> {
+impl ExactSizeIterator for AsciiToFe32Iter<'_> {
     #[inline]
     fn len(&self) -> usize { self.iter.len() }
 }
diff --git a/src/primitives/encode.rs b/src/primitives/encode.rs
index 65f2f852..883f914f 100644
--- a/src/primitives/encode.rs
+++ b/src/primitives/encode.rs
@@ -199,7 +199,7 @@ where
     }
 }
 
-impl<'a, I, Ck> Iterator for CharIter<'a, I, Ck>
+impl<I, Ck> Iterator for CharIter<'_, I, Ck>
 where
     I: Iterator<Item = Fe32>,
     Ck: Checksum,
@@ -269,7 +269,7 @@ where
     pub fn new(char_iter: CharIter<'hrp, I, Ck>) -> Self { Self { char_iter } }
 }
 
-impl<'a, I, Ck> Iterator for ByteIter<'a, I, Ck>
+impl<I, Ck> Iterator for ByteIter<'_, I, Ck>
 where
     I: Iterator<Item = Fe32>,
     Ck: Checksum,
@@ -311,7 +311,7 @@ where
     }
 }
 
-impl<'hrp, I, Ck> Iterator for Fe32Iter<'hrp, I, Ck>
+impl<I, Ck> Iterator for Fe32Iter<'_, I, Ck>
 where
     I: Iterator<Item = Fe32>,
     Ck: Checksum,
diff --git a/src/primitives/hrp.rs b/src/primitives/hrp.rs
index 5153bc20..a2a977ac 100644
--- a/src/primitives/hrp.rs
+++ b/src/primitives/hrp.rs
@@ -341,7 +341,7 @@ pub struct ByteIter<'b> {
     iter: slice::Iter<'b, u8>,
 }
 
-impl<'b> Iterator for ByteIter<'b> {
+impl Iterator for ByteIter<'_> {
     type Item = u8;
     #[inline]
     fn next(&mut self) -> Option<u8> { self.iter.next().copied() }
@@ -349,17 +349,17 @@ impl<'b> Iterator for ByteIter<'b> {
     fn size_hint(&self) -> (usize, Option<usize>) { self.iter.size_hint() }
 }
 
-impl<'b> ExactSizeIterator for ByteIter<'b> {
+impl ExactSizeIterator for ByteIter<'_> {
     #[inline]
     fn len(&self) -> usize { self.iter.len() }
 }
 
-impl<'b> DoubleEndedIterator for ByteIter<'b> {
+impl DoubleEndedIterator for ByteIter<'_> {
     #[inline]
     fn next_back(&mut self) -> Option<Self::Item> { self.iter.next_back().copied() }
 }
 
-impl<'b> FusedIterator for ByteIter<'b> {}
+impl FusedIterator for ByteIter<'_> {}
 
 /// Iterator over ASCII characters of the human-readable part.
 ///
@@ -368,7 +368,7 @@ pub struct CharIter<'b> {
     iter: ByteIter<'b>,
 }
 
-impl<'b> Iterator for CharIter<'b> {
+impl Iterator for CharIter<'_> {
     type Item = char;
     #[inline]
     fn next(&mut self) -> Option<char> { self.iter.next().map(Into::into) }
@@ -376,24 +376,24 @@ impl<'b> Iterator for CharIter<'b> {
     fn size_hint(&self) -> (usize, Option<usize>) { self.iter.size_hint() }
 }
 
-impl<'b> ExactSizeIterator for CharIter<'b> {
+impl ExactSizeIterator for CharIter<'_> {
     #[inline]
     fn len(&self) -> usize { self.iter.len() }
 }
 
-impl<'b> DoubleEndedIterator for CharIter<'b> {
+impl DoubleEndedIterator for CharIter<'_> {
     #[inline]
     fn next_back(&mut self) -> Option<Self::Item> { self.iter.next_back().map(Into::into) }
 }
 
-impl<'b> FusedIterator for CharIter<'b> {}
+impl FusedIterator for CharIter<'_> {}
 
 /// Iterator over lowercase bytes (ASCII characters) of the human-readable part.
 pub struct LowercaseByteIter<'b> {
     iter: ByteIter<'b>,
 }
 
-impl<'b> Iterator for LowercaseByteIter<'b> {
+impl Iterator for LowercaseByteIter<'_> {
     type Item = u8;
     #[inline]
     fn next(&mut self) -> Option<u8> {
@@ -403,26 +403,26 @@ impl<'b> Iterator for LowercaseByteIter<'b> {
     fn size_hint(&self) -> (usize, Option<usize>) { self.iter.size_hint() }
 }
 
-impl<'b> ExactSizeIterator for LowercaseByteIter<'b> {
+impl ExactSizeIterator for LowercaseByteIter<'_> {
     #[inline]
     fn len(&self) -> usize { self.iter.len() }
 }
 
-impl<'b> DoubleEndedIterator for LowercaseByteIter<'b> {
+impl DoubleEndedIterator for LowercaseByteIter<'_> {
     #[inline]
     fn next_back(&mut self) -> Option<Self::Item> {
         self.iter.next_back().map(|b| if is_ascii_uppercase(b) { b | 32 } else { b })
     }
 }
 
-impl<'b> FusedIterator for LowercaseByteIter<'b> {}
+impl FusedIterator for LowercaseByteIter<'_> {}
 
 /// Iterator over lowercase ASCII characters of the human-readable part.
 pub struct LowercaseCharIter<'b> {
     iter: LowercaseByteIter<'b>,
 }
 
-impl<'b> Iterator for LowercaseCharIter<'b> {
+impl Iterator for LowercaseCharIter<'_> {
     type Item = char;
     #[inline]
     fn next(&mut self) -> Option<char> { self.iter.next().map(Into::into) }
@@ -430,17 +430,17 @@ impl<'b> Iterator for LowercaseCharIter<'b> {
     fn size_hint(&self) -> (usize, Option<usize>) { self.iter.size_hint() }
 }
 
-impl<'b> ExactSizeIterator for LowercaseCharIter<'b> {
+impl ExactSizeIterator for LowercaseCharIter<'_> {
     #[inline]
     fn len(&self) -> usize { self.iter.len() }
 }
 
-impl<'b> DoubleEndedIterator for LowercaseCharIter<'b> {
+impl DoubleEndedIterator for LowercaseCharIter<'_> {
     #[inline]
     fn next_back(&mut self) -> Option<Self::Item> { self.iter.next_back().map(Into::into) }
 }
 
-impl<'b> FusedIterator for LowercaseCharIter<'b> {}
+impl FusedIterator for LowercaseCharIter<'_> {}
 
 fn is_ascii_uppercase(b: u8) -> bool { (65..=90).contains(&b) }