diff --git a/README.md b/README.md
index 41f565f..61096e5 100644
--- a/README.md
+++ b/README.md
@@ -4,8 +4,7 @@ Asynchronous stream of elements.
 
 Provides two macros, `stream!` and `try_stream!`, allowing the caller to
 define asynchronous streams of elements. These are implemented using `async`
-& `await` notation. The `stream!` macro works using only
-`#[feature(async_await)]`.
+& `await` notation. The `stream!` macro works without unstable features.
 
 The `stream!` macro returns an anonymous type implementing the [`Stream`]
 trait. The `Item` associated type is the type of the values yielded from the
@@ -20,8 +19,6 @@ A basic stream yielding numbers. Values are yielded using the `yield`
 keyword. The stream block must return `()`.
 
 ```rust
-#![feature(async_await)]
-
 use tokio::prelude::*;
 
 use async_stream::stream;
@@ -46,8 +43,6 @@ async fn main() {
 Streams may be returned by using `impl Stream<Item = T>`:
 
 ```rust
-#![feature(async_await)]
-
 use tokio::prelude::*;
 
 use async_stream::stream;
@@ -75,8 +70,6 @@ async fn main() {
 Streams may be implemented in terms of other streams:
 
 ```rust
-#![feature(async_await)]
-
 use tokio::prelude::*;
 
 use async_stream::stream;
@@ -117,8 +110,6 @@ of the returned stream is `Result` with `Ok` being the value yielded and
 `Err` the error type returned by `?`.
 
 ```rust
-#![feature(async_await)]
-
 use tokio::net::{TcpListener, TcpStream};
 use tokio::prelude::*;
 
diff --git a/async-stream/README.md b/async-stream/README.md
index 41f565f..61096e5 100644
--- a/async-stream/README.md
+++ b/async-stream/README.md
@@ -4,8 +4,7 @@ Asynchronous stream of elements.
 
 Provides two macros, `stream!` and `try_stream!`, allowing the caller to
 define asynchronous streams of elements. These are implemented using `async`
-& `await` notation. The `stream!` macro works using only
-`#[feature(async_await)]`.
+& `await` notation. The `stream!` macro works without unstable features.
 
 The `stream!` macro returns an anonymous type implementing the [`Stream`]
 trait. The `Item` associated type is the type of the values yielded from the
@@ -20,8 +19,6 @@ A basic stream yielding numbers. Values are yielded using the `yield`
 keyword. The stream block must return `()`.
 
 ```rust
-#![feature(async_await)]
-
 use tokio::prelude::*;
 
 use async_stream::stream;
@@ -46,8 +43,6 @@ async fn main() {
 Streams may be returned by using `impl Stream<Item = T>`:
 
 ```rust
-#![feature(async_await)]
-
 use tokio::prelude::*;
 
 use async_stream::stream;
@@ -75,8 +70,6 @@ async fn main() {
 Streams may be implemented in terms of other streams:
 
 ```rust
-#![feature(async_await)]
-
 use tokio::prelude::*;
 
 use async_stream::stream;
@@ -117,8 +110,6 @@ of the returned stream is `Result` with `Ok` being the value yielded and
 `Err` the error type returned by `?`.
 
 ```rust
-#![feature(async_await)]
-
 use tokio::net::{TcpListener, TcpStream};
 use tokio::prelude::*;
 
diff --git a/async-stream/examples/tcp_accept.rs b/async-stream/examples/tcp_accept.rs
index b50112d..be74721 100644
--- a/async-stream/examples/tcp_accept.rs
+++ b/async-stream/examples/tcp_accept.rs
@@ -1,5 +1,3 @@
-#![feature(async_await)]
-
 use async_stream::stream;
 use futures_util::pin_mut;
 use futures_util::stream::StreamExt;
diff --git a/async-stream/src/lib.rs b/async-stream/src/lib.rs
index 253f20c..f1f4707 100644
--- a/async-stream/src/lib.rs
+++ b/async-stream/src/lib.rs
@@ -1,11 +1,8 @@
-#![feature(async_await)]
-
 //! Asynchronous stream of elements.
 //!
 //! Provides two macros, `stream!` and `try_stream!`, allowing the caller to
 //! define asynchronous streams of elements. These are implemented using `async`
-//! & `await` notation. The `stream!` macro works using only
-//! `#[feature(async_await)]`.
+//! & `await` notation. The `stream!` macro works without unstable features.
 //!
 //! The `stream!` macro returns an anonymous type implementing the [`Stream`]
 //! trait. The `Item` associated type is the type of the values yielded from the
@@ -20,8 +17,6 @@
 //! keyword. The stream block must return `()`.
 //!
 //! ```rust
-//! #![feature(async_await)]
-//!
 //! use tokio::prelude::*;
 //!
 //! use async_stream::stream;
@@ -46,8 +41,6 @@
 //! Streams may be returned by using `impl Stream<Item = T>`:
 //!
 //! ```rust
-//! #![feature(async_await)]
-//!
 //! use tokio::prelude::*;
 //!
 //! use async_stream::stream;
@@ -75,8 +68,6 @@
 //! Streams may be implemented in terms of other streams:
 //!
 //! ```rust
-//! #![feature(async_await)]
-//!
 //! use tokio::prelude::*;
 //!
 //! use async_stream::stream;
@@ -117,8 +108,6 @@
 //! `Err` the error type returned by `?`.
 //!
 //! ```rust
-//! #![feature(async_await)]
-//!
 //! use tokio::net::{TcpListener, TcpStream};
 //! use tokio::prelude::*;
 //!
@@ -197,8 +186,6 @@ pub mod reexport {
 /// # Examples
 ///
 /// ```rust
-/// #![feature(async_await)]
-///
 /// use tokio::prelude::*;
 ///
 /// use async_stream::stream;
@@ -241,8 +228,6 @@ macro_rules! stream {
 /// # Examples
 ///
 /// ```rust
-/// #![feature(async_await)]
-///
 /// use tokio::net::{TcpListener, TcpStream};
 /// use tokio::prelude::*;
 ///
diff --git a/async-stream/tests/for_await.rs b/async-stream/tests/for_await.rs
index 422ee76..3fc528d 100644
--- a/async-stream/tests/for_await.rs
+++ b/async-stream/tests/for_await.rs
@@ -1,5 +1,3 @@
-#![feature(async_await)]
-
 use tokio::prelude::*;
 
 use async_stream::stream;
diff --git a/async-stream/tests/stream.rs b/async-stream/tests/stream.rs
index 8133161..68cb574 100644
--- a/async-stream/tests/stream.rs
+++ b/async-stream/tests/stream.rs
@@ -1,5 +1,3 @@
-#![feature(async_await)]
-
 use async_stream::stream;
 
 use futures_util::pin_mut;
diff --git a/async-stream/tests/try_stream.rs b/async-stream/tests/try_stream.rs
index 8039997..7748ffc 100644
--- a/async-stream/tests/try_stream.rs
+++ b/async-stream/tests/try_stream.rs
@@ -1,5 +1,3 @@
-#![feature(async_await)]
-
 use async_stream::try_stream;
 
 use tokio::prelude::*;
diff --git a/async-stream/tests/ui/yield_in_async.rs b/async-stream/tests/ui/yield_in_async.rs
index b1fbe6b..24e7330 100644
--- a/async-stream/tests/ui/yield_in_async.rs
+++ b/async-stream/tests/ui/yield_in_async.rs
@@ -1,5 +1,3 @@
-#![feature(async_await)]
-
 use async_stream::stream;
 
 fn main() {
diff --git a/async-stream/tests/ui/yield_in_async.stderr b/async-stream/tests/ui/yield_in_async.stderr
index 9ab407f..4a1527a 100644
--- a/async-stream/tests/ui/yield_in_async.stderr
+++ b/async-stream/tests/ui/yield_in_async.stderr
@@ -1,16 +1,16 @@
 error[E0658]: yield syntax is experimental
- --> $DIR/yield_in_async.rs:8:13
+ --> $DIR/yield_in_async.rs:6:13
   |
-8 |             yield 123;
+6 |             yield 123;
   |             ^^^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/43122
   = help: add `#![feature(generators)]` to the crate attributes to enable
 
 error[E0727]: `async` generators are not yet supported
- --> $DIR/yield_in_async.rs:8:13
+ --> $DIR/yield_in_async.rs:6:13
   |
-8 |             yield 123;
+6 |             yield 123;
   |             ^^^^^^^^^
 
 For more information about this error, try `rustc --explain E0658`.
diff --git a/async-stream/tests/ui/yield_in_closure.rs b/async-stream/tests/ui/yield_in_closure.rs
index 33b004b..cd6ebd9 100644
--- a/async-stream/tests/ui/yield_in_closure.rs
+++ b/async-stream/tests/ui/yield_in_closure.rs
@@ -1,5 +1,3 @@
-#![feature(async_await)]
-
 use async_stream::stream;
 
 fn main() {
diff --git a/async-stream/tests/ui/yield_in_closure.stderr b/async-stream/tests/ui/yield_in_closure.stderr
index f8402a3..c1098fb 100644
--- a/async-stream/tests/ui/yield_in_closure.stderr
+++ b/async-stream/tests/ui/yield_in_closure.stderr
@@ -1,16 +1,16 @@
 error[E0658]: yield syntax is experimental
- --> $DIR/yield_in_closure.rs:9:17
+ --> $DIR/yield_in_closure.rs:7:17
   |
-9 |                 yield v;
+7 |                 yield v;
   |                 ^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/43122
   = help: add `#![feature(generators)]` to the crate attributes to enable
 
 error[E0628]: generators cannot have explicit arguments
- --> $DIR/yield_in_closure.rs:8:23
+ --> $DIR/yield_in_closure.rs:6:23
   |
-8 |             .and_then(|v| {
+6 |             .and_then(|v| {
   |                       ^^^
 
 For more information about this error, try `rustc --explain E0658`.
diff --git a/async-stream/tests/ui/yield_in_nested_fn.rs b/async-stream/tests/ui/yield_in_nested_fn.rs
index 7e1ba21..9ae6cf2 100644
--- a/async-stream/tests/ui/yield_in_nested_fn.rs
+++ b/async-stream/tests/ui/yield_in_nested_fn.rs
@@ -1,5 +1,3 @@
-#![feature(async_await)]
-
 use async_stream::stream;
 
 fn main() {
diff --git a/async-stream/tests/ui/yield_in_nested_fn.stderr b/async-stream/tests/ui/yield_in_nested_fn.stderr
index d8b2447..7583df4 100644
--- a/async-stream/tests/ui/yield_in_nested_fn.stderr
+++ b/async-stream/tests/ui/yield_in_nested_fn.stderr
@@ -1,16 +1,16 @@
 error[E0658]: yield syntax is experimental
- --> $DIR/yield_in_nested_fn.rs:8:13
+ --> $DIR/yield_in_nested_fn.rs:6:13
   |
-8 |             yield "hello";
+6 |             yield "hello";
   |             ^^^^^^^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/43122
   = help: add `#![feature(generators)]` to the crate attributes to enable
 
 error[E0627]: yield statement outside of generator literal
- --> $DIR/yield_in_nested_fn.rs:8:13
+ --> $DIR/yield_in_nested_fn.rs:6:13
   |
-8 |             yield "hello";
+6 |             yield "hello";
   |             ^^^^^^^^^^^^^
 
 For more information about this error, try `rustc --explain E0658`.