diff --git a/CHANGELOG.md b/CHANGELOG.md
index 96f530c..4db49a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.2.1] - 2026-04-10
+
+### Features
+
+- fixed shared hashing that caused memory issues (#23)
+
 ## [0.2.0] - 2026-03-26
 
 ### Breaking Changes
diff --git a/pyproject.toml b/pyproject.toml
index 6c4c7c7..0df83bc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "transformplan"
-version = "0.2.0"
+version = "0.2.1"
 description = "Safe, reproducible data transformations with built-in auditing and validation"
 readme = "README.md"
 requires-python = ">=3.10"
diff --git a/uv.lock b/uv.lock
index 055c71e..77adecf 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1281,7 +1281,7 @@ wheels = [
 
 [[package]]
 name = "transformplan"
-version = "0.2.0"
+version = "0.2.1"
 source = { editable = "." }
 dependencies = [
     { name = "pandas", version = "2.3.3", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.11'" },