diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef44007..3d26124 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Changelog
 
+## [4.0.0](https://github.com/cheminfo/netcdfjs/compare/v3.0.0...v4.0.0) (2026-03-06)
+
+
+### ⚠ BREAKING CHANGES
+
+* migrate to type=module
+
+### Miscellaneous Chores
+
+* migrate to type=module ([8fbf3ef](https://github.com/cheminfo/netcdfjs/commit/8fbf3ef51d24d7f605f122e7acffa373475d9bc5))
+
 ## [3.0.0](https://github.com/cheminfo/netcdfjs/compare/v2.0.2...v3.0.0) (2023-08-08)
 
 
diff --git a/package.json b/package.json
index 9209a55..013bb52 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "netcdfjs",
-  "version": "3.0.0",
+  "version": "4.0.0",
   "description": "Read and explore NetCDF files",
   "type": "module",
   "exports": {