diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1a39e0cf..d81c4a07 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -43,7 +43,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - { rust: 1.57.0, os: ubuntu-latest }
+          - { rust: 1.59.0, os: ubuntu-latest }
     steps:
       - name: Checkout
         uses: actions/checkout@v2
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 90bc01ec..853a731e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+# [4.0.12] 2022-08-24
+
+- Update MSRV to `1.59.0`
+- Support `@specifiedBy` directive in SDL export [#1041](https://github.com/async-graphql/async-graphql/pull/1041)
+- Add GraphiQL v2 [#1044](https://github.com/async-graphql/async-graphql/pull/1044)
+- Export SDL: consistently avoid trailing spaces [#1043](https://github.com/async-graphql/async-graphql/pull/1043)
+
 # [4.0.11] 2022-08-23
 
 - Define `override` directive on fields [#1029](https://github.com/async-graphql/async-graphql/pull/1029)
diff --git a/README.md b/README.md
index a9544726..5e0f4d03 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@
 * [Docs](https://docs.rs/async-graphql)
 * [GitHub repository](https://github.com/async-graphql/async-graphql)
 * [Cargo package](https://crates.io/crates/async-graphql)
-* Minimum supported Rust version: 1.57.0 or later
+* Minimum supported Rust version: 1.59.0 or later
 
 ## Safety