diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4459c26..90ae2ff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # CHANGELOG
 
-## 0.2.21dev
+## 0.2.21 (2024-01-12)
 
 * [Fix] Fix error when determining if telemetry call was from a cloud user
 
diff --git a/src/ploomber_core/__init__.py b/src/ploomber_core/__init__.py
index 2ab3c2e..f289274 100644
--- a/src/ploomber_core/__init__.py
+++ b/src/ploomber_core/__init__.py
@@ -1 +1 @@
-__version__ = "0.2.21dev"
+__version__ = "0.2.21"