diff --git a/tokio-test/CHANGELOG.md b/tokio-test/CHANGELOG.md
index 0094de608..3fba3cec9 100644
--- a/tokio-test/CHANGELOG.md
+++ b/tokio-test/CHANGELOG.md
@@ -1,3 +1,9 @@
+# 0.4.1 (March 10, 2021)
+
+- Fix `io::Mock` to be `Send` and `Sync` ([#3594])
+
+[#3594]: https://github.com/tokio-rs/tokio/pull/3594
+
 # 0.4.0 (December 23, 2020)
 
 - Track `tokio` 1.0 release.
diff --git a/tokio-test/Cargo.toml b/tokio-test/Cargo.toml
index bb23f987c..2691c89f0 100644
--- a/tokio-test/Cargo.toml
+++ b/tokio-test/Cargo.toml
@@ -6,13 +6,13 @@ name = "tokio-test"
 #   - Cargo.toml
 # - Update CHANGELOG.md.
 # - Create "tokio-test-0.4.x" git tag.
-version = "0.4.0"
+version = "0.4.1"
 edition = "2018"
 authors = ["Tokio Contributors <team@tokio.rs>"]
 license = "MIT"
 repository = "https://github.com/tokio-rs/tokio"
 homepage = "https://tokio.rs"
-documentation = "https://docs.rs/tokio-test/0.4.0/tokio_test"
+documentation = "https://docs.rs/tokio-test/0.4.1/tokio_test"
 description = """
 Testing utilities for Tokio- and futures-based code
 """
diff --git a/tokio-test/src/lib.rs b/tokio-test/src/lib.rs
index 93d8b02d6..c5104540f 100644
--- a/tokio-test/src/lib.rs
+++ b/tokio-test/src/lib.rs
@@ -21,9 +21,9 @@ pub mod task;
 /// future completes.
 ///
 /// For more information, see the documentation for
-/// [`tokio::runtime::current_thread::Runtime::block_on`][runtime-block-on].
+/// [`tokio::runtime::Runtime::block_on`][runtime-block-on].
 ///
-/// [runtime-block-on]: https://docs.rs/tokio/0.2.0-alpha.2/tokio/runtime/current_thread/struct.Runtime.html#method.block_on
+/// [runtime-block-on]: https://docs.rs/tokio/1.3.0/tokio/runtime/struct.Runtime.html#method.block_on
 pub fn block_on<F: std::future::Future>(future: F) -> F::Output {
     use tokio::runtime;