diff --git a/src/number.rs b/src/number.rs
index 949bc5c..6423507 100644
--- a/src/number.rs
+++ b/src/number.rs
@@ -10,7 +10,6 @@ use error::Error;
 use serde::de::{self, Unexpected, Visitor};
 use serde::{Deserialize, Deserializer, Serialize, Serializer};
 use std::fmt::{self, Debug, Display};
-use std::i64;
 
 #[cfg(feature = "arbitrary_precision")]
 use dtoa;
@@ -64,10 +63,8 @@ impl Number {
     /// # #[macro_use]
     /// # extern crate serde_json;
     /// #
-    /// # use std::i64;
-    /// #
     /// # fn main() {
-    /// let big = i64::MAX as u64 + 10;
+    /// let big = i64::max_value() as u64 + 10;
     /// let v = json!({ "a": 64, "b": big, "c": 256.0 });
     ///
     /// assert!(v["a"].is_i64());
@@ -170,10 +167,8 @@ impl Number {
     /// # #[macro_use]
     /// # extern crate serde_json;
     /// #
-    /// # use std::i64;
-    /// #
     /// # fn main() {
-    /// let big = i64::MAX as u64 + 10;
+    /// let big = i64::max_value() as u64 + 10;
     /// let v = json!({ "a": 64, "b": big, "c": 256.0 });
     ///
     /// assert_eq!(v["a"].as_i64(), Some(64));
diff --git a/src/value/de.rs b/src/value/de.rs
index cc0d5ab..67b18be 100644
--- a/src/value/de.rs
+++ b/src/value/de.rs
@@ -8,7 +8,6 @@
 
 use std::borrow::Cow;
 use std::fmt;
-use std::i64;
 use std::slice;
 use std::str;
 use std::vec;
diff --git a/src/value/mod.rs b/src/value/mod.rs
index 39e0dde..3362512 100644
--- a/src/value/mod.rs
+++ b/src/value/mod.rs
@@ -108,7 +108,6 @@
 //! [from_reader]: https://docs.serde.rs/serde_json/de/fn.from_reader.html
 
 use std::fmt::{self, Debug};
-use std::i64;
 use std::io;
 use std::mem;
 use std::str;
@@ -589,10 +588,8 @@ impl Value {
     /// # #[macro_use]
     /// # extern crate serde_json;
     /// #
-    /// # use std::i64;
-    /// #
     /// # fn main() {
-    /// let big = i64::MAX as u64 + 10;
+    /// let big = i64::max_value() as u64 + 10;
     /// let v = json!({ "a": 64, "b": big, "c": 256.0 });
     ///
     /// assert!(v["a"].is_i64());
@@ -675,10 +672,8 @@ impl Value {
     /// # #[macro_use]
     /// # extern crate serde_json;
     /// #
-    /// # use std::i64;
-    /// #
     /// # fn main() {
-    /// let big = i64::MAX as u64 + 10;
+    /// let big = i64::max_value() as u64 + 10;
     /// let v = json!({ "a": 64, "b": big, "c": 256.0 });
     ///
     /// assert_eq!(v["a"].as_i64(), Some(64));