diff --git a/CHANGELOG.md b/CHANGELOG.md
index d8424e5..36368e4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.19.3] - 2026-06-26
+
+### Refactor
+
+- Make molecule weights configurable via pyproject.toml
+
 ## [0.19.2] - 2026-06-26
 
 ### Bug Fixes
diff --git a/src/devx/__init__.py b/src/devx/__init__.py
index 34f03a6..32c6ba8 100644
--- a/src/devx/__init__.py
+++ b/src/devx/__init__.py
@@ -1,3 +1,3 @@
 """devx — reusable development and CI/CD tools for oblachno-oss projects."""
 
-__version__ = "0.19.2"
+__version__ = "0.19.3"