diff --git a/README.md b/README.md
index 07b2e8d6170..7de7ddf4bb5 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ Make sure you activated the full features of the tokio crate on Cargo.toml:
 
 ```toml
 [dependencies]
-tokio = { version = "1.21.1", features = ["full"] }
+tokio = { version = "1.18.3", features = ["full"] }
 ```
 Then, on your main.rs:
 
diff --git a/tokio/CHANGELOG.md b/tokio/CHANGELOG.md
index 5ca9e5215d1..a9ebb50b47c 100644
--- a/tokio/CHANGELOG.md
+++ b/tokio/CHANGELOG.md
@@ -1,225 +1,9 @@
-# 1.21.1 (September 13, 2022)
+# 1.18.3 (September 27, 2022)
 
-### Fixed
-
-- net: fix dependency resolution for socket2 ([#5000])
-- task: ignore failure to set TLS in `LocalSet` Drop ([#4976])
-
-[#4976]: https://github.com/tokio-rs/tokio/pull/4976
-[#5000]: https://github.com/tokio-rs/tokio/pull/5000
-
-# 1.21.0 (September 2, 2022)
-
-This release is the first release of Tokio to intentionally support WASM. The
-`sync,macros,io-util,rt,time` features are stabilized on WASM. Additionally the
-wasm32-wasi target is given unstable support for the `net` feature.
-
-### Added
-
-- net: add `device` and `bind_device` methods to TCP/UDP sockets ([#4882])
-- net: add `tos` and `set_tos` methods to TCP and UDP sockets ([#4877])
-- net: add security flags to named pipe `ServerOptions` ([#4845])
-- signal: add more windows signal handlers ([#4924])
-- sync: add `mpsc::Sender::max_capacity` method ([#4904])
-- sync: implement Weak version of `mpsc::Sender` ([#4595])
-- task: add `LocalSet::enter` ([#4765])
-- task: stabilize `JoinSet` and `AbortHandle` ([#4920])
-- tokio: add `track_caller` to public APIs ([#4805], [#4848], [#4852])
-- wasm: initial support for `wasm32-wasi` target ([#4716])
-
-### Fixed
-
-- miri: improve miri compatibility by avoiding temporary references in `linked_list::Link` impls ([#4841])
-- signal: don't register write interest on signal pipe ([#4898])
-- sync: add `#[must_use]` to lock guards ([#4886])
-- sync: fix hang when calling `recv` on closed and reopened broadcast channel ([#4867])
-- task: propagate attributes on task-locals ([#4837])
-
-### Changed
-
-- fs: change panic to error in `File::start_seek` ([#4897])
-- io: reduce syscalls in `poll_read` ([#4840])
-- process: use blocking threadpool for child stdio I/O ([#4824])
-- signal: make `SignalKind` methods const ([#4956])
-
-### Internal changes
-
-- rt: extract `basic_scheduler::Config` ([#4935])
-- rt: move I/O driver into `runtime` module ([#4942])
-- rt: rename internal scheduler types ([#4945])
-
-### Documented
-
-- chore: fix typos and grammar ([#4858], [#4894], [#4928])
-- io: fix typo in `AsyncSeekExt::rewind` docs ([#4893])
-- net: add documentation to `try_read()` for zero-length buffers ([#4937])
-- runtime: remove incorrect panic section for `Builder::worker_threads` ([#4849])
-- sync: doc of `watch::Sender::send` improved ([#4959])
-- task: add cancel safety docs to `JoinHandle` ([#4901])
-- task: expand on cancellation of `spawn_blocking` ([#4811])
-- time: clarify that the first tick of `Interval::tick` happens immediately ([#4951])
-
-### Unstable
-
-- rt: add unstable option to disable the LIFO slot ([#4936])
-- task: fix incorrect signature in `Builder::spawn_on` ([#4953])
-- task: make `task::Builder::spawn*` methods fallible ([#4823])
-
-[#4595]: https://github.com/tokio-rs/tokio/pull/4595
-[#4716]: https://github.com/tokio-rs/tokio/pull/4716
-[#4765]: https://github.com/tokio-rs/tokio/pull/4765
-[#4805]: https://github.com/tokio-rs/tokio/pull/4805
-[#4811]: https://github.com/tokio-rs/tokio/pull/4811
-[#4823]: https://github.com/tokio-rs/tokio/pull/4823
-[#4824]: https://github.com/tokio-rs/tokio/pull/4824
-[#4837]: https://github.com/tokio-rs/tokio/pull/4837
-[#4840]: https://github.com/tokio-rs/tokio/pull/4840
-[#4841]: https://github.com/tokio-rs/tokio/pull/4841
-[#4845]: https://github.com/tokio-rs/tokio/pull/4845
-[#4848]: https://github.com/tokio-rs/tokio/pull/4848
-[#4849]: https://github.com/tokio-rs/tokio/pull/4849
-[#4852]: https://github.com/tokio-rs/tokio/pull/4852
-[#4858]: https://github.com/tokio-rs/tokio/pull/4858
-[#4867]: https://github.com/tokio-rs/tokio/pull/4867
-[#4877]: https://github.com/tokio-rs/tokio/pull/4877
-[#4882]: https://github.com/tokio-rs/tokio/pull/4882
-[#4886]: https://github.com/tokio-rs/tokio/pull/4886
-[#4893]: https://github.com/tokio-rs/tokio/pull/4893
-[#4894]: https://github.com/tokio-rs/tokio/pull/4894
-[#4897]: https://github.com/tokio-rs/tokio/pull/4897
-[#4898]: https://github.com/tokio-rs/tokio/pull/4898
-[#4901]: https://github.com/tokio-rs/tokio/pull/4901
-[#4904]: https://github.com/tokio-rs/tokio/pull/4904
-[#4920]: https://github.com/tokio-rs/tokio/pull/4920
-[#4924]: https://github.com/tokio-rs/tokio/pull/4924
-[#4928]: https://github.com/tokio-rs/tokio/pull/4928
-[#4935]: https://github.com/tokio-rs/tokio/pull/4935
-[#4936]: https://github.com/tokio-rs/tokio/pull/4936
-[#4937]: https://github.com/tokio-rs/tokio/pull/4937
-[#4942]: https://github.com/tokio-rs/tokio/pull/4942
-[#4945]: https://github.com/tokio-rs/tokio/pull/4945
-[#4951]: https://github.com/tokio-rs/tokio/pull/4951
-[#4953]: https://github.com/tokio-rs/tokio/pull/4953
-[#4956]: https://github.com/tokio-rs/tokio/pull/4956
-[#4959]: https://github.com/tokio-rs/tokio/pull/4959
-
-# 1.20.1 (July 25, 2022)
-
-### Fixed
-
-- chore: fix version detection in build script ([#4860])
-
-[#4860]: https://github.com/tokio-rs/tokio/pull/4860
-
-# 1.20.0 (July 12, 2022)
-
-### Added
-- tokio: add `track_caller` to public APIs ([#4772], [#4791], [#4793], [#4806], [#4808])
-- sync: Add `has_changed` method to `watch::Ref` ([#4758])
-
-### Changed
-
-- time: remove `src/time/driver/wheel/stack.rs` ([#4766])
-- rt: clean up arguments passed to basic scheduler ([#4767])
-- net: be more specific about winapi features ([#4764])
-- tokio: use const initialized thread locals where possible ([#4677])
-- task: various small improvements to LocalKey ([#4795])
-
-### Documented
-
-- fs: warn about performance pitfall ([#4762])
-- chore: fix spelling ([#4769])
-- sync: document spurious failures in oneshot ([#4777])
-- sync: add warning for watch in non-Send futures ([#4741])
-- chore: fix typo ([#4798])
-
-### Unstable
-
-- joinset: rename `join_one` to `join_next` ([#4755])
-- rt: unhandled panic config for current thread rt ([#4770])
-
-[#4677]: https://github.com/tokio-rs/tokio/pull/4677
-[#4741]: https://github.com/tokio-rs/tokio/pull/4741
-[#4755]: https://github.com/tokio-rs/tokio/pull/4755
-[#4758]: https://github.com/tokio-rs/tokio/pull/4758
-[#4762]: https://github.com/tokio-rs/tokio/pull/4762
-[#4764]: https://github.com/tokio-rs/tokio/pull/4764
-[#4766]: https://github.com/tokio-rs/tokio/pull/4766
-[#4767]: https://github.com/tokio-rs/tokio/pull/4767
-[#4769]: https://github.com/tokio-rs/tokio/pull/4769
-[#4770]: https://github.com/tokio-rs/tokio/pull/4770
-[#4772]: https://github.com/tokio-rs/tokio/pull/4772
-[#4777]: https://github.com/tokio-rs/tokio/pull/4777
-[#4791]: https://github.com/tokio-rs/tokio/pull/4791
-[#4793]: https://github.com/tokio-rs/tokio/pull/4793
-[#4795]: https://github.com/tokio-rs/tokio/pull/4795
-[#4798]: https://github.com/tokio-rs/tokio/pull/4798
-[#4806]: https://github.com/tokio-rs/tokio/pull/4806
-[#4808]: https://github.com/tokio-rs/tokio/pull/4808
-
-# 1.19.2 (June 6, 2022)
-
-This release fixes another bug in `Notified::enable`. ([#4751])
-
-[#4751]: https://github.com/tokio-rs/tokio/pull/4751
-
-# 1.19.1 (June 5, 2022)
-
-This release fixes a bug in `Notified::enable`. ([#4747])
-
-[#4747]: https://github.com/tokio-rs/tokio/pull/4747
-
-# 1.19.0 (June 3, 2022)
-
-### Added
-
-- runtime: add `is_finished` method for `JoinHandle` and `AbortHandle` ([#4709])
-- runtime: make global queue and event polling intervals configurable ([#4671])
-- sync: add `Notified::enable` ([#4705])
-- sync: add `watch::Sender::send_if_modified` ([#4591])
-- sync: add resubscribe method to broadcast::Receiver ([#4607])
-- net: add `take_error` to `TcpSocket` and `TcpStream` ([#4739])
-
-### Changed
-
-- io: refactor out usage of Weak in the io handle ([#4656])
-
-### Fixed
-
-- macros: avoid starvation in `join!` and `try_join!` ([#4624])
-
-### Documented
-
-- runtime: clarify semantics of tasks outliving `block_on` ([#4729])
-- time: fix example for `MissedTickBehavior::Burst` ([#4713])
-
-### Unstable
+This release removes the dependency on the `once_cell` crate to restore the MSRV
+of the 1.18.x LTS release. ([#5048])
 
-- metrics: correctly update atomics in `IoDriverMetrics` ([#4725])
-- metrics: fix compilation with unstable, process, and rt, but without net ([#4682])
-- task: add `#[track_caller]` to `JoinSet`/`JoinMap` ([#4697])
-- task: add `Builder::{spawn_on, spawn_local_on, spawn_blocking_on}` ([#4683])
-- task: add `consume_budget` for cooperative scheduling ([#4498])
-- task: add `join_set::Builder` for configuring `JoinSet` tasks ([#4687])
-- task: update return value of `JoinSet::join_one` ([#4726])
-
-[#4498]: https://github.com/tokio-rs/tokio/pull/4498
-[#4591]: https://github.com/tokio-rs/tokio/pull/4591
-[#4607]: https://github.com/tokio-rs/tokio/pull/4607
-[#4624]: https://github.com/tokio-rs/tokio/pull/4624
-[#4656]: https://github.com/tokio-rs/tokio/pull/4656
-[#4671]: https://github.com/tokio-rs/tokio/pull/4671
-[#4682]: https://github.com/tokio-rs/tokio/pull/4682
-[#4683]: https://github.com/tokio-rs/tokio/pull/4683
-[#4687]: https://github.com/tokio-rs/tokio/pull/4687
-[#4697]: https://github.com/tokio-rs/tokio/pull/4697
-[#4705]: https://github.com/tokio-rs/tokio/pull/4705
-[#4709]: https://github.com/tokio-rs/tokio/pull/4709
-[#4713]: https://github.com/tokio-rs/tokio/pull/4713
-[#4725]: https://github.com/tokio-rs/tokio/pull/4725
-[#4726]: https://github.com/tokio-rs/tokio/pull/4726
-[#4729]: https://github.com/tokio-rs/tokio/pull/4729
-[#4739]: https://github.com/tokio-rs/tokio/pull/4739
+[#5048]: https://github.com/tokio-rs/tokio/pull/5048
 
 # 1.18.2 (May 5, 2022)
 
diff --git a/tokio/Cargo.toml b/tokio/Cargo.toml
index 06f67d0c5b5..7b75eadd452 100644
--- a/tokio/Cargo.toml
+++ b/tokio/Cargo.toml
@@ -6,7 +6,7 @@ name = "tokio"
 #   - README.md
 # - Update CHANGELOG.md.
 # - Create "v1.0.x" git tag.
-version = "1.21.1"
+version = "1.18.3"
 edition = "2018"
 rust-version = "1.49"
 authors = ["Tokio Contributors <team@tokio.rs>"]
diff --git a/tokio/README.md b/tokio/README.md
index 07b2e8d6170..7de7ddf4bb5 100644
--- a/tokio/README.md
+++ b/tokio/README.md
@@ -56,7 +56,7 @@ Make sure you activated the full features of the tokio crate on Cargo.toml:
 
 ```toml
 [dependencies]
-tokio = { version = "1.21.1", features = ["full"] }
+tokio = { version = "1.18.3", features = ["full"] }
 ```
 Then, on your main.rs: