diff --git a/.cargo_vcs_info.json b/.cargo_vcs_info.json
index ffd4f55..aa92167 100644
--- a/.cargo_vcs_info.json
+++ b/.cargo_vcs_info.json
@@ -1,5 +1,6 @@
 {
   "git": {
-    "sha1": "7caefa51304e78fd5018cd5d2a03f3b9089cc010"
-  }
-}
+    "sha1": "fc1e3250219170e31cddb8857a276cba7dd08d44"
+  },
+  "path_in_vcs": "futures-sink"
+}
\ No newline at end of file
diff --git a/Android.bp b/Android.bp
index 1db9f5a..da05036 100644
--- a/Android.bp
+++ b/Android.bp
@@ -42,7 +42,7 @@
     host_supported: true,
     crate_name: "futures_sink",
     cargo_env_compat: true,
-    cargo_pkg_version: "0.3.17",
+    cargo_pkg_version: "0.3.21",
     srcs: ["src/lib.rs"],
     edition: "2018",
     features: [
diff --git a/Cargo.toml b/Cargo.toml
index 824c97b..2203c38 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,14 +11,16 @@
 
 [package]
 edition = "2018"
+rust-version = "1.36"
 name = "futures-sink"
-version = "0.3.17"
-authors = ["Alex Crichton <alex@alexcrichton.com>"]
-description = "The asynchronous `Sink` trait for the futures-rs library.\n"
+version = "0.3.21"
+description = """
+The asynchronous `Sink` trait for the futures-rs library.
+"""
 homepage = "https://rust-lang.github.io/futures-rs"
-documentation = "https://docs.rs/futures-sink/0.3"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/rust-lang/futures-rs"
+
 [package.metadata.docs.rs]
 all-features = true
 
diff --git a/Cargo.toml.orig b/Cargo.toml.orig
index c5d5681..2c0685a 100644
--- a/Cargo.toml.orig
+++ b/Cargo.toml.orig
@@ -1,12 +1,11 @@
 [package]
 name = "futures-sink"
+version = "0.3.21"
 edition = "2018"
-version = "0.3.17"
-authors = ["Alex Crichton <alex@alexcrichton.com>"]
+rust-version = "1.36"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/rust-lang/futures-rs"
 homepage = "https://rust-lang.github.io/futures-rs"
-documentation = "https://docs.rs/futures-sink/0.3"
 description = """
 The asynchronous `Sink` trait for the futures-rs library.
 """
diff --git a/METADATA b/METADATA
index aed75cb..27fe835 100644
--- a/METADATA
+++ b/METADATA
@@ -7,13 +7,13 @@
   }
   url {
     type: ARCHIVE
-    value: "https://static.crates.io/crates/futures-sink/futures-sink-0.3.17.crate"
+    value: "https://static.crates.io/crates/futures-sink/futures-sink-0.3.21.crate"
   }
-  version: "0.3.17"
+  version: "0.3.21"
   license_type: NOTICE
   last_upgrade_date {
-    year: 2021
-    month: 9
-    day: 22
+    year: 2022
+    month: 3
+    day: 1
   }
 }
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..1d683e9
--- /dev/null
+++ b/README.md
@@ -0,0 +1,23 @@
+# futures-sink
+
+The asynchronous `Sink` trait for the futures-rs library.
+
+## Usage
+
+Add this to your `Cargo.toml`:
+
+```toml
+[dependencies]
+futures-sink = "0.3"
+```
+
+The current `futures-sink` requires Rust 1.36 or later.
+
+## License
+
+Licensed under either of [Apache License, Version 2.0](LICENSE-APACHE) or
+[MIT license](LICENSE-MIT) at your option.
+
+Unless you explicitly state otherwise, any contribution intentionally submitted
+for inclusion in the work by you, as defined in the Apache-2.0 license, shall
+be dual licensed as above, without any additional terms or conditions.