diff --git a/README.md b/README.md
index 5ef5ad4..67f1dd7 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,7 @@ your `Cargo.toml`:
 
 ```toml
 futures-preview = "0.3.0-alpha.18"
-tokio = "0.2.0-alpha.2"
+tokio = "0.2.0-alpha.3"
 ```
 
 In the following example, we use an in-process channel for communication between
diff --git a/bincode-transport/src/lib.rs b/bincode-transport/src/lib.rs
index c04f1e8..93ff2dc 100644
--- a/bincode-transport/src/lib.rs
+++ b/bincode-transport/src/lib.rs
@@ -6,7 +6,6 @@
 
 //! A TCP [`Transport`] that serializes as bincode.
 
-#![feature(async_await)]
 #![deny(missing_docs, missing_debug_implementations)]
 
 use async_bincode::{AsyncBincodeStream, AsyncDestination};
diff --git a/example-service/Cargo.toml b/example-service/Cargo.toml
index 1da57ab..d0c1b82 100644
--- a/example-service/Cargo.toml
+++ b/example-service/Cargo.toml
@@ -18,7 +18,7 @@ clap = "2.0"
 futures-preview = { version = "0.3.0-alpha.18" }
 serde = { version = "1.0" }
 tarpc = { version = "0.18", path = "../tarpc", features = ["serde1"] }
-tokio = "0.2.0-alpha.2"
+tokio = "0.2.0-alpha.3"
 env_logger = "0.6"
 
 [lib]
diff --git a/example-service/src/client.rs b/example-service/src/client.rs
index 2ff867b..0c3f61e 100644
--- a/example-service/src/client.rs
+++ b/example-service/src/client.rs
@@ -4,8 +4,6 @@
 // license that can be found in the LICENSE file or at
 // https://opensource.org/licenses/MIT.
 
-#![feature(async_await)]
-
 use clap::{App, Arg};
 use std::io;
 use tarpc::{client, context};
diff --git a/example-service/src/lib.rs b/example-service/src/lib.rs
index ee9f48f..ddd75e0 100644
--- a/example-service/src/lib.rs
+++ b/example-service/src/lib.rs
@@ -4,8 +4,6 @@
 // license that can be found in the LICENSE file or at
 // https://opensource.org/licenses/MIT.
 
-#![feature(async_await)]
-
 /// This is the service definition. It looks a lot like a trait definition.
 /// It defines one RPC, hello, which takes one arg, name, and returns a String.
 #[tarpc::service]
diff --git a/example-service/src/server.rs b/example-service/src/server.rs
index 316df57..6b17887 100644
--- a/example-service/src/server.rs
+++ b/example-service/src/server.rs
@@ -4,8 +4,6 @@
 // license that can be found in the LICENSE file or at
 // https://opensource.org/licenses/MIT.
 
-#![feature(async_await)]
-
 use clap::{App, Arg};
 use futures::{
     future::{self, Ready},
diff --git a/plugins/tests/service.rs b/plugins/tests/service.rs
index e715894..8dc5f16 100644
--- a/plugins/tests/service.rs
+++ b/plugins/tests/service.rs
@@ -1,5 +1,3 @@
-#![feature(async_await)]
-
 use tarpc::context;
 
 #[test]
diff --git a/rpc/Cargo.toml b/rpc/Cargo.toml
index 2d564bb..2733f35 100644
--- a/rpc/Cargo.toml
+++ b/rpc/Cargo.toml
@@ -27,7 +27,7 @@ rand = "0.7"
 tokio-timer = "0.3.0-alpha.2"
 trace = { package = "tarpc-trace", version = "0.2", path = "../trace" }
 serde = { optional = true, version = "1.0" }
-tokio = { optional = true, version = "0.2.0-alpha.2" }
+tokio = { optional = true, version = "0.2.0-alpha.3" }
 
 [dev-dependencies]
 futures-test-preview = { version = "0.3.0-alpha.18" }
diff --git a/tarpc/Cargo.toml b/tarpc/Cargo.toml
index fe9773e..c40a55b 100644
--- a/tarpc/Cargo.toml
+++ b/tarpc/Cargo.toml
@@ -35,7 +35,7 @@ futures-preview = { version = "0.3.0-alpha.18" }
 humantime = "1.0"
 log = "0.4"
 pin-utils = "0.1.0-alpha.4"
-tokio = "0.2.0-alpha.2"
+tokio = "0.2.0-alpha.3"
 
 [[example]]
 name = "server_calling_server"
diff --git a/tarpc/examples/pubsub.rs b/tarpc/examples/pubsub.rs
index ab9d72d..a107c6c 100644
--- a/tarpc/examples/pubsub.rs
+++ b/tarpc/examples/pubsub.rs
@@ -4,7 +4,7 @@
 // license that can be found in the LICENSE file or at
 // https://opensource.org/licenses/MIT.
 
-#![feature(async_await, type_alias_impl_trait)]
+#![feature(type_alias_impl_trait)]
 
 use futures::{
     future::{self, Ready},
diff --git a/tarpc/examples/readme.rs b/tarpc/examples/readme.rs
index e321822..f86e635 100644
--- a/tarpc/examples/readme.rs
+++ b/tarpc/examples/readme.rs
@@ -4,8 +4,6 @@
 // license that can be found in the LICENSE file or at
 // https://opensource.org/licenses/MIT.
 
-#![feature(async_await)]
-
 use futures::{
     future::{self, Ready},
     prelude::*,
diff --git a/tarpc/examples/server_calling_server.rs b/tarpc/examples/server_calling_server.rs
index df6cd5a..9cc1011 100644
--- a/tarpc/examples/server_calling_server.rs
+++ b/tarpc/examples/server_calling_server.rs
@@ -4,7 +4,7 @@
 // license that can be found in the LICENSE file or at
 // https://opensource.org/licenses/MIT.
 
-#![feature(async_await, type_alias_impl_trait)]
+#![feature(type_alias_impl_trait)]
 
 use crate::{add::Add as AddService, double::Double as DoubleService};
 use futures::{
diff --git a/tarpc/src/lib.rs b/tarpc/src/lib.rs
index 5025c91..9b37493 100644
--- a/tarpc/src/lib.rs
+++ b/tarpc/src/lib.rs
@@ -64,7 +64,7 @@
 //!
 //! ```toml
 //! futures-preview = "0.3.0-alpha.18"
-//! tokio = "0.2.0-alpha.2"
+//! tokio = "0.2.0-alpha.3"
 //! ```
 //!
 //! In the following example, we use an in-process channel for communication between
@@ -206,7 +206,7 @@
 //! items expanded by a `service!` invocation.
 
 #![deny(missing_docs, missing_debug_implementations)]
-#![feature(async_await, external_doc)]
+#![feature(external_doc)]
 pub use rpc::*;
 
 /// The main macro that creates RPC services.
diff --git a/tarpc/tests/service_functional.rs b/tarpc/tests/service_functional.rs
index de562ce..25d988a 100644
--- a/tarpc/tests/service_functional.rs
+++ b/tarpc/tests/service_functional.rs
@@ -1,5 +1,3 @@
-#![feature(async_await)]
-
 use assert_matches::assert_matches;
 use futures::{
     future::{ready, Ready},