diff --git a/CHANGELOG.md b/CHANGELOG.md
index 41aacd828..3dd4c5c94 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,12 +15,13 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
     _Security_ in case of vulnerabilities.
  -->
 
-## [Unreleased](https://github.com/o1-labs/o1js/compare/e1bac02...HEAD)
+## [Unreleased](https://github.com/o1-labs/o1js/compare/b857516...HEAD)
 
-### Added
+## [2.2.0](https://github.com/o1-labs/o1js/compare/e1bac02...b857516) - 2024-12-10
 
--`ZkProgram` to support non-pure provable types as inputs and outputs https://github.com/o1-labs/o1js/pull/1828
+### Added
 
+- `ZkProgram` to support non-pure provable types as inputs and outputs https://github.com/o1-labs/o1js/pull/1828
 - Add `enforceTransactionLimits` parameter on Network https://github.com/o1-labs/o1js/issues/1910
 - Method for optional types to assert none https://github.com/o1-labs/o1js/pull/1922
 - Increased maximum supported amount of methods in a `SmartContract` or `ZkProgram` to 30. https://github.com/o1-labs/o1js/pull/1918
@@ -64,7 +65,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - `divMod64()` division modulo 2^64 that returns the remainder and quotient of the operation
 - `addMod64()` addition modulo 2^64
 - Bitwise OR via `{UInt32, UInt64}.or()`
-- **BLAKE2B hash function** gadget [#1285](https://github.com/o1-labs/o1js/pull/1285)
+- **BLAKE2B hash function** gadget. https://github.com/o1-labs/o1js/pull/1767
 
 ## [1.9.1](https://github.com/o1-labs/o1js/compare/f15293a69...7e9394) - 2024-10-15
 
diff --git a/package-lock.json b/package-lock.json
index ab82906a4..621dfa483 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "o1js",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "o1js",
-      "version": "2.1.0",
+      "version": "2.2.0",
       "license": "Apache-2.0",
       "dependencies": {
         "blakejs": "1.2.1",
diff --git a/package.json b/package.json
index e6043658c..617bd77c7 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "o1js",
   "description": "TypeScript framework for zk-SNARKs and zkApps",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "license": "Apache-2.0",
   "homepage": "https://github.com/o1-labs/o1js/",
   "repository": {