diff --git a/Cargo.lock b/Cargo.lock
index b33e57a..4dacf38 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -924,12 +924,6 @@ dependencies = [
  "percent-encoding",
 ]
 
-[[package]]
-name = "fuchsia-cprng"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a06f77d526c1a601b7c4cdd98f54b5eaabffc14d5f2f0296febdc7f357c6d3ba"
-
 [[package]]
 name = "futf"
 version = "0.1.5"
@@ -2209,19 +2203,6 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "rand"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "552840b97013b1a26992c11eac34bdd778e464601a4c2054b5f0bff7c6761293"
-dependencies = [
- "fuchsia-cprng",
- "libc",
- "rand_core 0.3.1",
- "rdrand",
- "winapi",
-]
-
 [[package]]
 name = "rand"
 version = "0.7.3"
@@ -2267,21 +2248,6 @@ dependencies = [
  "rand_core 0.6.4",
 ]
 
-[[package]]
-name = "rand_core"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a6fdeb83b075e8266dcc8762c22776f6877a63111121f5f8c7411e5be7eed4b"
-dependencies = [
- "rand_core 0.4.2",
-]
-
-[[package]]
-name = "rand_core"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c33a3c44ca05fa6f1807d8e6743f3824e8509beca625669633be0acbdf509dc"
-
 [[package]]
 name = "rand_core"
 version = "0.5.1"
@@ -2349,15 +2315,6 @@ dependencies = [
  "num_cpus",
 ]
 
-[[package]]
-name = "rdrand"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
-dependencies = [
- "rand_core 0.3.1",
-]
-
 [[package]]
 name = "redox_syscall"
 version = "0.2.16"
@@ -2431,15 +2388,6 @@ version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "436b050e76ed2903236f032a59761c1eb99e1b0aead2c257922771dab1fc8c78"
 
-[[package]]
-name = "remove_dir_all"
-version = "0.5.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3acd125665422973a33ac9d3dd2df85edad0f4ae9b00dafb1a05e43a9f5ef8e7"
-dependencies = [
- "winapi",
-]
-
 [[package]]
 name = "reqwest"
 version = "0.11.18"
@@ -3111,7 +3059,7 @@ dependencies = [
  "standback",
  "stderrlog",
  "steamguard",
- "tempdir",
+ "tempfile",
  "text_io",
  "thiserror",
  "update-informer",
@@ -3201,16 +3149,6 @@ dependencies = [
  "unicode-ident",
 ]
 
-[[package]]
-name = "tempdir"
-version = "0.3.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15f2b5fb00ccdf689e0149d1b1b3c03fead81c2b37735d812fa8bddbbf41b6d8"
-dependencies = [
- "rand 0.4.6",
- "remove_dir_all",
-]
-
 [[package]]
 name = "tempfile"
 version = "3.6.0"
diff --git a/Cargo.toml b/Cargo.toml
index da4fd89..b644d34 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -75,7 +75,7 @@ sha1 = "0.10.5"
 rayon = "1.7.0"
 
 [dev-dependencies]
-tempdir = "0.3"
+tempfile = "3"
 proptest = "1"
 
 [profile.release]
diff --git a/src/accountmanager.rs b/src/accountmanager.rs
index bd95257..a5e7218 100644
--- a/src/accountmanager.rs
+++ b/src/accountmanager.rs
@@ -470,11 +470,11 @@ pub enum ManifestAccountImportError {
 mod tests {
 	use super::*;
 	use steamguard::ExposeSecret;
-	use tempdir::TempDir;
+	use tempfile::TempDir;
 
 	#[test]
 	fn test_should_save_new_manifest() {
-		let tmp_dir = TempDir::new("steamguard-cli-test").unwrap();
+		let tmp_dir = TempDir::new().unwrap();
 		let manifest_path = tmp_dir.path().join("manifest.json");
 		let manager = AccountManager::new(manifest_path.as_path());
 		assert!(manager.save().is_ok());
@@ -482,7 +482,7 @@ mod tests {
 
 	#[test]
 	fn test_should_save_and_load_manifest() -> anyhow::Result<()> {
-		let tmp_dir = TempDir::new("steamguard-cli-test")?;
+		let tmp_dir = TempDir::new()?;
 		let manifest_path = tmp_dir.path().join("manifest.json");
 		println!("tempdir: {}", manifest_path.display());
 		let mut manager = AccountManager::new(manifest_path.as_path());
@@ -518,7 +518,7 @@ mod tests {
 	#[test]
 	fn test_should_save_and_load_manifest_encrypted() -> anyhow::Result<()> {
 		let passkey = Some(SecretString::new("password".into()));
-		let tmp_dir = TempDir::new("steamguard-cli-test")?;
+		let tmp_dir = TempDir::new()?;
 		let manifest_path = tmp_dir.path().join("manifest.json");
 		let mut manager = AccountManager::new(manifest_path.as_path());
 		let mut account = SteamGuardAccount::new();
@@ -567,7 +567,7 @@ mod tests {
 	#[test]
 	fn test_should_save_and_load_manifest_encrypted_longer() -> anyhow::Result<()> {
 		let passkey = Some(SecretString::new("password".into()));
-		let tmp_dir = TempDir::new("steamguard-cli-test")?;
+		let tmp_dir = TempDir::new()?;
 		let manifest_path = tmp_dir.path().join("manifest.json");
 		let mut manager = AccountManager::new(manifest_path.as_path());
 		let mut account = SteamGuardAccount::new();
@@ -614,7 +614,7 @@ mod tests {
 
 	#[test]
 	fn test_should_import() -> anyhow::Result<()> {
-		let tmp_dir = TempDir::new("steamguard-cli-test")?;
+		let tmp_dir = TempDir::new()?;
 		let manifest_path = tmp_dir.path().join("manifest.json");
 		let mut manager = AccountManager::new(manifest_path.as_path());
 		let mut account = SteamGuardAccount::new();
diff --git a/src/accountmanager/migrate.rs b/src/accountmanager/migrate.rs
index 41c75b0..e07e9c9 100644
--- a/src/accountmanager/migrate.rs
+++ b/src/accountmanager/migrate.rs
@@ -319,6 +319,8 @@ impl From<ExternalAccount> for SteamGuardAccount {
 
 #[cfg(test)]
 mod tests {
+	use tempfile::TempDir;
+
 	use crate::{accountmanager::CURRENT_MANIFEST_VERSION, AccountManager};
 
 	use super::*;
@@ -477,7 +479,7 @@ mod tests {
 		];
 		for case in cases {
 			eprintln!("testing: {:?}", case);
-			let temp = tempdir::TempDir::new("steamguard-cli-test")?;
+			let temp = TempDir::new()?;
 			for file in std::fs::read_dir(case.dir)? {
 				let file = file?;
 				let path = file.path();