diff --git a/CHANGELOG.md b/CHANGELOG.md
index 30070ae9..cb310ccb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.4.0] - 2021-11-17
+
 ### Changed
 
 - Add prefix `Offer` to serialized public offer ([#173](https://github.com/farcaster-project/farcaster-core/pull/173))
@@ -73,7 +75,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Messages exchanged between farcaster-node's microservices
 - Tasks and blockchain events used by syncers
 
-[Unreleased]: https://github.com/farcaster-project/farcaster-core/compare/v0.3.0...HEAD
+[Unreleased]: https://github.com/farcaster-project/farcaster-core/compare/v0.4.0...HEAD
+[0.4.0]: https://github.com/farcaster-project/farcaster-core/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/farcaster-project/farcaster-core/compare/v0.2.0...v0.3.0
 [0.2.0]: https://github.com/farcaster-project/farcaster-core/compare/v0.1.0...v0.2.0
 [0.1.0]: https://github.com/farcaster-project/farcaster-core/compare/33ed7f975670c79d768d74e3fd5cf7d55e011a18...v0.1.0
diff --git a/Cargo.toml b/Cargo.toml
index a5211a87..9e0223f8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "farcaster_core"
-version = "0.3.0"
+version = "0.4.0"
 authors = ["Farcaster Devs"]
 documentation = "https://docs.rs/farcaster_core"
 homepage = "https://github.com/farcaster-project/farcaster-core"