diff --git a/idna/src/punycode.rs b/idna/src/punycode.rs
index 2d6d4139..6a330889 100644
--- a/idna/src/punycode.rs
+++ b/idna/src/punycode.rs
@@ -17,7 +17,6 @@ use alloc::{string::String, vec::Vec};
 use core::char;
 use core::fmt::Write;
 use core::marker::PhantomData;
-use core::u32;
 
 // Bootstring parameters for Punycode
 const BASE: u32 = 36;
diff --git a/url/src/host.rs b/url/src/host.rs
index 62db3b46..7864b77d 100644
--- a/url/src/host.rs
+++ b/url/src/host.rs
@@ -309,7 +309,7 @@ fn parse_ipv4addr(input: &str) -> ParseResult<Ipv4Addr> {
     }
     let mut ipv4 = numbers.pop().expect("a non-empty list of numbers");
     // Equivalent to: ipv4 >= 256 ** (4 − numbers.len())
-    if ipv4 > u32::max_value() >> (8 * numbers.len() as u32) {
+    if ipv4 > u32::MAX >> (8 * numbers.len() as u32) {
         return Err(ParseError::InvalidIpv4Address);
     }
     if numbers.iter().any(|x| *x > 255) {
diff --git a/url/src/parser.rs b/url/src/parser.rs
index 2e3a4f64..8dd054df 100644
--- a/url/src/parser.rs
+++ b/url/src/parser.rs
@@ -1109,7 +1109,7 @@ impl<'a> Parser<'a> {
         while let (Some(c), remaining) = input.split_first() {
             if let Some(digit) = c.to_digit(10) {
                 port = port * 10 + digit;
-                if port > ::std::u16::MAX as u32 {
+                if port > u16::MAX as u32 {
                     return Err(ParseError::InvalidPort);
                 }
                 has_any_digit = true;
@@ -1590,7 +1590,7 @@ pub fn ascii_alpha(ch: char) -> bool {
 
 #[inline]
 pub fn to_u32(i: usize) -> ParseResult<u32> {
-    if i <= ::std::u32::MAX as usize {
+    if i <= u32::MAX as usize {
         Ok(i as u32)
     } else {
         Err(ParseError::Overflow)