diff --git a/Cargo.toml b/Cargo.toml
index f2d7c9cf..b0334da6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,5 +16,5 @@ stable_deref_trait = { version = "1.0", optional = true }
 libc = "0.2"
 
 [dev-dependencies]
-tempdir = "0.3"
+tempfile = "3"
 owning_ref = "0.4.1"
diff --git a/src/lib.rs b/src/lib.rs
index 9473b2ca..b90d1bcf 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -360,7 +360,7 @@ impl MmapOptions {
     ///
     /// ```
     /// # extern crate memmap2;
-    /// # extern crate tempdir;
+    /// # extern crate tempfile;
     /// #
     /// use std::fs::OpenOptions;
     /// use std::path::PathBuf;
@@ -368,7 +368,7 @@ impl MmapOptions {
     /// use memmap2::MmapOptions;
     /// #
     /// # fn main() -> std::io::Result<()> {
-    /// # let tempdir = tempdir::TempDir::new("mmap")?;
+    /// # let tempdir = tempfile::tempdir()?;
     /// let path: PathBuf = /* path to file */
     /// #   tempdir.path().join("map_mut");
     /// let file = OpenOptions::new().read(true).write(true).create(true).open(&path)?;
@@ -575,7 +575,7 @@ impl Mmap {
     ///
     /// ```
     /// # extern crate memmap2;
-    /// # extern crate tempdir;
+    /// # extern crate tempfile;
     /// #
     /// use memmap2::Mmap;
     /// use std::ops::DerefMut;
@@ -583,7 +583,7 @@ impl Mmap {
     /// # use std::fs::OpenOptions;
     ///
     /// # fn main() -> std::io::Result<()> {
-    /// # let tempdir = tempdir::TempDir::new("mmap")?;
+    /// # let tempdir = tempfile::tempdir()?;
     /// let file = /* file opened with write permissions */
     /// #          OpenOptions::new()
     /// #                      .read(true)
@@ -702,7 +702,7 @@ impl MmapRaw {
     ///
     /// ```
     /// # extern crate memmap2;
-    /// # extern crate tempdir;
+    /// # extern crate tempfile;
     /// #
     /// use std::fs::OpenOptions;
     /// use std::io::Write;
@@ -712,7 +712,7 @@ impl MmapRaw {
     /// use memmap2::MmapRaw;
     ///
     /// # fn main() -> std::io::Result<()> {
-    /// let tempdir = tempdir::TempDir::new("mmap")?;
+    /// let tempdir = tempfile::tempdir()?;
     /// let path: PathBuf = /* path to file */
     /// #   tempdir.path().join("flush");
     /// let file = OpenOptions::new().read(true).write(true).create(true).open(&path)?;
@@ -822,7 +822,7 @@ impl MmapMut {
     ///
     /// ```
     /// # extern crate memmap2;
-    /// # extern crate tempdir;
+    /// # extern crate tempfile;
     /// #
     /// use std::fs::OpenOptions;
     /// use std::path::PathBuf;
@@ -830,7 +830,7 @@ impl MmapMut {
     /// use memmap2::MmapMut;
     /// #
     /// # fn main() -> std::io::Result<()> {
-    /// # let tempdir = tempdir::TempDir::new("mmap")?;
+    /// # let tempdir = tempfile::tempdir()?;
     /// let path: PathBuf = /* path to file */
     /// #   tempdir.path().join("map_mut");
     /// let file = OpenOptions::new()
@@ -871,7 +871,7 @@ impl MmapMut {
     ///
     /// ```
     /// # extern crate memmap2;
-    /// # extern crate tempdir;
+    /// # extern crate tempfile;
     /// #
     /// use std::fs::OpenOptions;
     /// use std::io::Write;
@@ -880,7 +880,7 @@ impl MmapMut {
     /// use memmap2::MmapMut;
     ///
     /// # fn main() -> std::io::Result<()> {
-    /// # let tempdir = tempdir::TempDir::new("mmap")?;
+    /// # let tempdir = tempfile::tempdir()?;
     /// let path: PathBuf = /* path to file */
     /// #   tempdir.path().join("flush");
     /// let file = OpenOptions::new().read(true).write(true).create(true).open(&path)?;
@@ -1033,7 +1033,7 @@ impl fmt::Debug for MmapMut {
 
 #[cfg(test)]
 mod test {
-    extern crate tempdir;
+    extern crate tempfile;
 
     #[cfg(unix)]
     use crate::advice::Advice;
@@ -1052,7 +1052,7 @@ mod test {
     #[test]
     fn map_file() {
         let expected_len = 128;
-        let tempdir = tempdir::TempDir::new("mmap").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let path = tempdir.path().join("mmap");
 
         let file = OpenOptions::new()
@@ -1085,7 +1085,7 @@ mod test {
     #[cfg(unix)]
     fn map_fd() {
         let expected_len = 128;
-        let tempdir = tempdir::TempDir::new("mmap").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let path = tempdir.path().join("mmap");
 
         let file = OpenOptions::new()
@@ -1117,7 +1117,7 @@ mod test {
     /// Checks that "mapping" a 0-length file derefs to an empty slice.
     #[test]
     fn map_empty_file() {
-        let tempdir = tempdir::TempDir::new("mmap").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let path = tempdir.path().join("mmap");
 
         let file = OpenOptions::new()
@@ -1159,7 +1159,7 @@ mod test {
 
     #[test]
     fn file_write() {
-        let tempdir = tempdir::TempDir::new("mmap").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let path = tempdir.path().join("mmap");
 
         let mut file = OpenOptions::new()
@@ -1183,7 +1183,7 @@ mod test {
 
     #[test]
     fn flush_range() {
-        let tempdir = tempdir::TempDir::new("mmap").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let path = tempdir.path().join("mmap");
 
         let file = OpenOptions::new()
@@ -1209,7 +1209,7 @@ mod test {
 
     #[test]
     fn map_copy() {
-        let tempdir = tempdir::TempDir::new("mmap").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let path = tempdir.path().join("mmap");
 
         let mut file = OpenOptions::new()
@@ -1245,7 +1245,7 @@ mod test {
 
     #[test]
     fn map_copy_read_only() {
-        let tempdir = tempdir::TempDir::new("mmap").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let path = tempdir.path().join("mmap");
 
         let file = OpenOptions::new()
@@ -1270,7 +1270,7 @@ mod test {
 
     #[test]
     fn map_offset() {
-        let tempdir = tempdir::TempDir::new("mmap").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let path = tempdir.path().join("mmap");
 
         let file = OpenOptions::new()
@@ -1356,7 +1356,7 @@ mod test {
     #[test]
     #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
     fn jit_x86_file() {
-        let tempdir = tempdir::TempDir::new("mmap").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let mut options = OpenOptions::new();
         #[cfg(windows)]
         options.access_mode(GENERIC_ALL);
@@ -1374,7 +1374,7 @@ mod test {
 
     #[test]
     fn mprotect_file() {
-        let tempdir = tempdir::TempDir::new("mmap").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let path = tempdir.path().join("mmap");
 
         let mut options = OpenOptions::new();
@@ -1420,7 +1420,7 @@ mod test {
 
     #[test]
     fn mprotect_copy() {
-        let tempdir = tempdir::TempDir::new("mmap").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let path = tempdir.path().join("mmap");
 
         let mut options = OpenOptions::new();
@@ -1477,7 +1477,7 @@ mod test {
 
     #[test]
     fn raw() {
-        let tempdir = tempdir::TempDir::new("mmap").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let path = tempdir.path().join("mmapraw");
 
         let mut options = OpenOptions::new();
@@ -1516,7 +1516,7 @@ mod test {
     #[cfg(unix)]
     fn advise() {
         let expected_len = 128;
-        let tempdir = tempdir::TempDir::new("mmap").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let path = tempdir.path().join("mmap_advise");
 
         let file = OpenOptions::new()