diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6cd422a..b37ecc0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,17 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+## [0.9.0](https://gitea.deepak.science:2222/physics/pdme/compare/0.8.9...0.9.0) (2023-07-24)
+
+
+### ⚠ BREAKING CHANGES
+
+* separates threshold cost and the seed_cost in mcmc
+
+### Features
+
+* separates threshold cost and the seed_cost in mcmc ([ca710e3](https://gitea.deepak.science:2222/physics/pdme/commit/ca710e359fd0cfbb620a3574a2fa4fab1be2b52a))
+
 ### [0.8.9](https://gitea.deepak.science:2222/physics/pdme/compare/0.8.8...0.8.9) (2023-07-23)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 9a27e96..17e36ec 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pdme"
-version = "0.8.9"
+version = "0.9.0"
 description = "Python dipole model evaluator"
 authors = ["Deepak <dmallubhotla+github@gmail.com>"]
 license = "GPL-3.0-only"