diff --git a/Cargo.toml b/Cargo.toml
index 4653b04..27b3244 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ version = "0.2"
 
 [dev-dependencies]
 criterion = "0.2"
-rand = "0.5"
+rand_os = "0.1"
 
 [[bench]]
 name = "x25519"
diff --git a/README.md b/README.md
index dca2a2e..2cf795b 100644
--- a/README.md
+++ b/README.md
@@ -30,11 +30,11 @@ First, Alice uses `x25519_dalek::generate_secret()` and then
 
 ```rust
 extern crate x25519_dalek;
-extern crate rand;
+extern crate rand_os;
 
 use x25519_dalek::generate_secret;
 use x25519_dalek::generate_public;
-use rand::OsRng;
+use rand_os::OsRng;
 
 let mut alice_csprng = OsRng::new().unwrap();
 let     alice_secret = generate_secret(&mut alice_csprng);
diff --git a/benches/x25519.rs b/benches/x25519.rs
index 8203785..7246380 100644
--- a/benches/x25519.rs
+++ b/benches/x25519.rs
@@ -11,12 +11,12 @@
 
 #[macro_use]
 extern crate criterion;
-extern crate rand;
+extern crate rand_os;
 extern crate x25519_dalek;
 
 use criterion::Criterion;
 
-use rand::OsRng;
+use rand_os::OsRng;
 
 use x25519_dalek::generate_public;
 use x25519_dalek::generate_secret;
diff --git a/src/lib.rs b/src/lib.rs
index 8119480..1758bc8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -37,14 +37,14 @@
 //!
 //! ```
 //! extern crate x25519_dalek;
-//! extern crate rand;
+//! extern crate rand_os;
 //!
 //! # fn main() {
 //! use x25519_dalek::generate_secret;
 //! use x25519_dalek::generate_public;
-//! use rand::thread_rng;
+//! use rand_os::OsRng;
 //!
-//! let mut alice_csprng = thread_rng();
+//! let mut alice_csprng = OsRng::new().unwrap();
 //! let     alice_secret = generate_secret(&mut alice_csprng);
 //! let     alice_public = generate_public(&alice_secret);
 //! # }
@@ -54,14 +54,14 @@
 //!
 //! ```
 //! # extern crate x25519_dalek;
-//! # extern crate rand;
+//! # extern crate rand_os;
 //! #
 //! # fn main() {
 //! # use x25519_dalek::generate_secret;
 //! # use x25519_dalek::generate_public;
-//! # use rand::thread_rng;
+//! # use rand_os::OsRng;
 //! #
-//! let mut bob_csprng = thread_rng();
+//! let mut bob_csprng = OsRng::new().unwrap();
 //! let     bob_secret = generate_secret(&mut bob_csprng);
 //! let     bob_public = generate_public(&bob_secret);
 //! # }
@@ -73,18 +73,18 @@
 //!
 //! ```
 //! # extern crate x25519_dalek;
-//! # extern crate rand;
+//! # extern crate rand_os;
 //! #
 //! # fn main() {
 //! # use x25519_dalek::generate_secret;
 //! # use x25519_dalek::generate_public;
-//! # use rand::thread_rng;
+//! # use rand_os::OsRng;
 //! #
-//! # let mut alice_csprng = thread_rng();
+//! # let mut alice_csprng = OsRng::new().unwrap();
 //! # let     alice_secret = generate_secret(&mut alice_csprng);
 //! # let     alice_public = generate_public(&alice_secret);
 //! #
-//! # let mut bob_csprng = thread_rng();
+//! # let mut bob_csprng = OsRng::new().unwrap();
 //! # let     bob_secret = generate_secret(&mut bob_csprng);
 //! # let     bob_public = generate_public(&bob_secret);
 //! #
@@ -98,19 +98,19 @@
 //!
 //! ```
 //! # extern crate x25519_dalek;
-//! # extern crate rand;
+//! # extern crate rand_os;
 //! #
 //! # fn main() {
 //! # use x25519_dalek::diffie_hellman;
 //! # use x25519_dalek::generate_secret;
 //! # use x25519_dalek::generate_public;
-//! # use rand::thread_rng;
+//! # use rand_os::OsRng;
 //! #
-//! # let mut alice_csprng = thread_rng();
+//! # let mut alice_csprng = OsRng::new().unwrap();
 //! # let     alice_secret = generate_secret(&mut alice_csprng);
 //! # let     alice_public = generate_public(&alice_secret);
 //! #
-//! # let mut bob_csprng = thread_rng();
+//! # let mut bob_csprng = OsRng::new().unwrap();
 //! # let     bob_secret = generate_secret(&mut bob_csprng);
 //! # let     bob_public = generate_public(&bob_secret);
 //! #
@@ -130,9 +130,6 @@ extern crate curve25519_dalek;
 
 extern crate rand_core;
 
-#[cfg(test)]
-extern crate rand;
-
 mod x25519;
 
 pub use x25519::*;