diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9905ebfe..819c7a35 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,10 @@
 # CHANGELOG
 
-## 0.12.1dev
+## 0.12.1 (2024-02-07)
 
 - [Feature] Adds `ploomber-extension` as dependency
-- [Doc] Added example for `.upsert_append()`
 - [Feature] Support for mistune v3, altair v5
+- [Doc] Added example for `.upsert_append()`
 
 ## 0.12.0 (2023-03-23)
 
diff --git a/src/sklearn_evaluation/__init__.py b/src/sklearn_evaluation/__init__.py
index c1b83f0b..e8131772 100644
--- a/src/sklearn_evaluation/__init__.py
+++ b/src/sklearn_evaluation/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "0.12.1dev"
+__version__ = "0.12.1"
 
 from sklearn_evaluation.evaluator import ClassifierEvaluator
 from sklearn_evaluation.nb.NotebookIntrospector import NotebookIntrospector