diff --git a/CHANGELOG.md b/CHANGELOG.md
index 43b6cbb..a3e1847 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## v0.4.0 (2024-12-04)
+
+### Feat
+
+- improve late chunking and optimize pgvector settings (#51)
+
 ## v0.3.0 (2024-12-03)
 
 ### Feat
diff --git a/pyproject.toml b/pyproject.toml
index 0e5c177..1e54f71 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry] # https://python-poetry.org/docs/pyproject/
 name = "raglite"
-version = "0.3.0"
+version = "0.4.0"
 description = "A Python toolkit for Retrieval-Augmented Generation (RAG) with SQLite or PostgreSQL."
 authors = ["Laurent Sorber <laurent@superlinear.eu>"]
 readme = "README.md"