diff --git a/README.md b/README.md
index e82cd0fd..82e4d1ba 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 <div align="center">
  <p><h1>ntex</h1> </p>
-  <p><strong>Framework for composable network services. This project uses *unsafe*!</strong> </p>
+  <p><strong>Framework for composable network services.</strong> </p>
   <p>
 
 [![build status](https://github.com/ntex-rs/ntex/workflows/CI%20%28Linux%29/badge.svg?branch=master&event=push)](https://github.com/ntex-rs/ntex/actions?query=workflow%3A"CI+(Linux)") 
@@ -21,6 +21,16 @@
 | macOS            | [![build status](https://github.com/ntex-rs/ntex/workflows/CI%20%28OSX%29/badge.svg?branch=master&event=push)](https://github.com/ntex-rs/ntex/actions?query=workflow%3A"CI+(OSX)") |
 | Windows          | [![build status](https://github.com/ntex-rs/ntex/workflows/CI%20%28Windows%29/badge.svg?branch=master&event=push)](https://github.com/ntex-rs/ntex/actions?query=workflow%3A"CI+(Windows)") |
 
+## Usage
+
+Starting ntex v0.5 async runtime must be selected as a feature. Available options are `tokio`
+or `async-std`.
+
+```toml
+[dependencies]
+ntex = { version = "0.5", features = ["tokio"] }
+```
+
 ## Documentation & community resources
 
 * [Documentation](https://docs.rs/ntex)
diff --git a/ntex/Cargo.toml b/ntex/Cargo.toml
index ee3e8669..ec944ed5 100644
--- a/ntex/Cargo.toml
+++ b/ntex/Cargo.toml
@@ -14,7 +14,7 @@ license = "MIT"
 edition = "2018"
 
 [package.metadata.docs.rs]
-features = ["openssl", "rustls", "compress", "cookie"]
+features = ["tokio", "openssl", "rustls", "compress", "cookie"]
 
 [lib]
 name = "ntex"
diff --git a/ntex/README.md b/ntex/README.md
index e82cd0fd..82e4d1ba 100644
--- a/ntex/README.md
+++ b/ntex/README.md
@@ -1,6 +1,6 @@
 <div align="center">
  <p><h1>ntex</h1> </p>
-  <p><strong>Framework for composable network services. This project uses *unsafe*!</strong> </p>
+  <p><strong>Framework for composable network services.</strong> </p>
   <p>
 
 [![build status](https://github.com/ntex-rs/ntex/workflows/CI%20%28Linux%29/badge.svg?branch=master&event=push)](https://github.com/ntex-rs/ntex/actions?query=workflow%3A"CI+(Linux)") 
@@ -21,6 +21,16 @@
 | macOS            | [![build status](https://github.com/ntex-rs/ntex/workflows/CI%20%28OSX%29/badge.svg?branch=master&event=push)](https://github.com/ntex-rs/ntex/actions?query=workflow%3A"CI+(OSX)") |
 | Windows          | [![build status](https://github.com/ntex-rs/ntex/workflows/CI%20%28Windows%29/badge.svg?branch=master&event=push)](https://github.com/ntex-rs/ntex/actions?query=workflow%3A"CI+(Windows)") |
 
+## Usage
+
+Starting ntex v0.5 async runtime must be selected as a feature. Available options are `tokio`
+or `async-std`.
+
+```toml
+[dependencies]
+ntex = { version = "0.5", features = ["tokio"] }
+```
+
 ## Documentation & community resources
 
 * [Documentation](https://docs.rs/ntex)