diff --git a/tokio/CHANGELOG.md b/tokio/CHANGELOG.md
index afb0f934a..509d23eae 100644
--- a/tokio/CHANGELOG.md
+++ b/tokio/CHANGELOG.md
@@ -1,6 +1,11 @@
 This changelog only applies to the `tokio` crate proper. Each sub crate
 maintains its own changelog tracking changes made in each respective sub crate.
 
+# 0.1.21 (May 30, 2019)
+
+### Changed
+- Bump `tokio-trace-core` version to 0.2 (#1111).
+
 # 0.1.20 (May 14, 2019)
 
 ### Added
diff --git a/tokio/Cargo.toml b/tokio/Cargo.toml
index 66f437e7a..83b5f6a02 100644
--- a/tokio/Cargo.toml
+++ b/tokio/Cargo.toml
@@ -8,11 +8,11 @@ name = "tokio"
 #   - README.md
 # - Update CHANGELOG.md.
 # - Create "v0.1.x" git tag.
-version = "0.1.20"
+version = "0.1.21"
 authors = ["Carl Lerche <me@carllerche.com>"]
 license = "MIT"
 readme = "README.md"
-documentation = "https://docs.rs/tokio/0.1.20/tokio/"
+documentation = "https://docs.rs/tokio/0.1.21/tokio/"
 repository = "https://github.com/tokio-rs/tokio"
 homepage = "https://tokio.rs"
 description = """
diff --git a/tokio/README.md b/tokio/README.md
index 3d632f0e8..298780446 100644
--- a/tokio/README.md
+++ b/tokio/README.md
@@ -28,7 +28,7 @@ the Rust programming language. It is:
 
 [Website](https://tokio.rs) |
 [Guides](https://tokio.rs/docs/getting-started/hello-world/) |
-[API Docs](https://docs.rs/tokio/0.1.19/tokio) |
+[API Docs](https://docs.rs/tokio/0.1.21/tokio) |
 [Chat](https://gitter.im/tokio-rs/tokio)
 
 ## Overview
@@ -45,9 +45,9 @@ level, it provides a few major components:
 These components provide the runtime components necessary for building
 an asynchronous application.
 
-[net]: https://docs.rs/tokio/0.1.19/tokio/net/index.html
-[reactor]: https://docs.rs/tokio/0.1.19/tokio/reactor/index.html
-[scheduler]: https://docs.rs/tokio/0.1.19/tokio/runtime/index.html
+[net]: https://docs.rs/tokio/0.1.21/tokio/net/index.html
+[reactor]: https://docs.rs/tokio/0.1.21/tokio/reactor/index.html
+[scheduler]: https://docs.rs/tokio/0.1.21/tokio/runtime/index.html
 
 ## Example
 
diff --git a/tokio/src/lib.rs b/tokio/src/lib.rs
index 9efe74293..19766090e 100644
--- a/tokio/src/lib.rs
+++ b/tokio/src/lib.rs
@@ -1,4 +1,4 @@
-#![doc(html_root_url = "https://docs.rs/tokio/0.1.20")]
+#![doc(html_root_url = "https://docs.rs/tokio/0.1.21")]
 #![deny(missing_docs, warnings, missing_debug_implementations)]
 
 //! A runtime for writing reliable, asynchronous, and slim applications.