diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6b43e5c4..2524fd5e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,8 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.3.0] - 2022-02-09
+
 - Dropped generic authentication and added support for custom headers. <https://github.com/near/near-jsonrpc-client-rs/pull/47>
 - Added the `sandbox_fast_forward` RPC Method. <https://github.com/near/near-jsonrpc-client-rs/pull/38>
+- Upgraded `nearcore` crates to `v0.12.0` <https://github.com/near/near-jsonrpc-client-rs/pull/48>
 - Executing the [examples](https://github.com/near/near-jsonrpc-client-rs/tree/master/examples) now allows custom RPC addr specification with interactive server selection. <https://github.com/near/near-jsonrpc-client-rs/commit/b130118d0de806bd9950be306f563559f07c77e6> <https://github.com/near/near-jsonrpc-client-rs/commit/c5e938a90703cb216e99d6f23a43ad9d3812df3d>
 - `JsonRpcClient::connect` is now generic over any url-like type. [`Url`](https://docs.rs/url/*/url/struct.Url.html), `&str`, `String` and `&String` are all supported. <https://github.com/near/near-jsonrpc-client-rs/pull/35>
 - `JsonRpcClient` now defaults to the `Unauthenticated` state, easing a type specification pain point. <https://github.com/near/near-jsonrpc-client-rs/pull/36>
@@ -27,6 +30,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 > Release Page: <https://github.com/near/near-jsonrpc-client-rs/releases/tag/v0.1.0>
 
-[unreleased]: https://github.com/near/near-jsonrpc-client-rs/compare/v0.2.0...HEAD
+[unreleased]: https://github.com/near/near-jsonrpc-client-rs/compare/v0.3.0...HEAD
+[0.3.0]: https://github.com/near/near-jsonrpc-client-rs/compare/v0.2.0...v0.3.0
 [0.2.0]: https://github.com/near/near-jsonrpc-client-rs/compare/v0.1.0...v0.2.0
 [0.1.0]: https://github.com/near/near-jsonrpc-client-rs/releases/tag/v0.1.0
diff --git a/Cargo.toml b/Cargo.toml
index e05e19ad..b77ffa9c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ rust-version = "1.56.0"
 
 # cargo-workspaces
 [workspace.metadata.workspaces]
-version = "0.2.0"
+version = "0.3.0"
 
 [dependencies]
 thiserror = "1.0.28"
diff --git a/README.md b/README.md
index ffd596a1..9c4d302c 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ Lower-level API for interfacing with the NEAR Protocol via JSONRPC.
 [![crates.io](https://img.shields.io/crates/v/near-jsonrpc-client?label=latest)](https://crates.io/crates/near-jsonrpc-client)
 [![Documentation](https://docs.rs/near-jsonrpc-client/badge.svg)](https://docs.rs/near-jsonrpc-client)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/near-jsonrpc-client.svg)
-[![Dependency Status](https://deps.rs/crate/near-jsonrpc-client/0.2.0/status.svg)](https://deps.rs/crate/near-jsonrpc-client/0.2.0)
+[![Dependency Status](https://deps.rs/crate/near-jsonrpc-client/0.3.0/status.svg)](https://deps.rs/crate/near-jsonrpc-client/0.3.0)
 
 ## Usage