diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6c48da4..0fb8e92 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [4.3.0](https://www.github.com/mljs/peak-shape-generator/compare/v4.2.0...v4.3.0) (2026-05-27)
+
+
+### Features
+
+* **pseudovoigt:** compute the factor based on mu parameter ([#83](https://www.github.com/mljs/peak-shape-generator/issues/83)) ([bb4b572](https://www.github.com/mljs/peak-shape-generator/commit/bb4b5722b2a710c78f3177a82d04eb28e67e3481))
+
 ## [4.2.0](https://www.github.com/mljs/peak-shape-generator/compare/v4.1.4...v4.2.0) (2025-06-18)
 
 
diff --git a/package.json b/package.json
index d874fd7..34ba37c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ml-peak-shape-generator",
-  "version": "4.2.0",
+  "version": "4.3.0",
   "description": "Generate various peak shapes",
   "main": "./lib/index.js",
   "module": "./lib-esm/index.js",