diff --git a/CHANGELOG.md b/CHANGELOG.md
index b48b68e8..ab6d8675 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [7.45.1](https://github.com/cheminfo/mass-tools/compare/v7.45.0...v7.45.1) (2024-12-19)
+
+
+### Bug Fixes
+
+* **mf-utilities:** types returned by preprocessIonizations ([#258](https://github.com/cheminfo/mass-tools/issues/258)) ([629973d](https://github.com/cheminfo/mass-tools/commit/629973d8175d3d3b0c75d1a488cfc83261c578f4))
+* only expose build code in packages ([#255](https://github.com/cheminfo/mass-tools/issues/255)) ([f295376](https://github.com/cheminfo/mass-tools/commit/f2953761ba2e44ebee1d01dbbcf88e3896b2a644))
+
 ## [7.45.0](https://github.com/cheminfo/mass-tools/compare/v7.44.4...v7.45.0) (2024-12-18)
 
 
diff --git a/package.json b/package.json
index 8f43e1e8..532853c3 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "mass-tools",
   "private": true,
-  "version": "7.45.0",
+  "version": "7.45.1",
   "workspaces": [
     "packages/*"
   ],