diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index fa39a93f5..309f2b8bb 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  "projects/pgai": "0.3.0"
+  "projects/pgai": "0.4.0"
 }
diff --git a/projects/pgai/CHANGELOG.md b/projects/pgai/CHANGELOG.md
index 043be8834..170accc5e 100644
--- a/projects/pgai/CHANGELOG.md
+++ b/projects/pgai/CHANGELOG.md
@@ -1,5 +1,28 @@
 # Changelog
 
+## [0.4.0](https://github.com/timescale/pgai/compare/pgai-v0.3.0...pgai-v0.4.0) (2025-01-08)
+
+
+### Features
+
+* add sqlalchemy vectorizer_relationship ([#265](https://github.com/timescale/pgai/issues/265)) ([0230509](https://github.com/timescale/pgai/commit/0230509a374c472d65280769f92f0baeebb908d7))
+* load api keys from db in self hosted vectorizer ([#311](https://github.com/timescale/pgai/issues/311)) ([b7573b7](https://github.com/timescale/pgai/commit/b7573b79711a691a37201e06f6e5ba52631b69b9))
+* print unexpected error traceback in debug logs ([#344](https://github.com/timescale/pgai/issues/344)) ([d9bdcd6](https://github.com/timescale/pgai/commit/d9bdcd633fe372fca14dd97d830aeed9789f78ac))
+* pull missing ollama models ([#301](https://github.com/timescale/pgai/issues/301)) ([dbac246](https://github.com/timescale/pgai/commit/dbac246b563f10d1704b40bf16038b16529d6888))
+* upgrade ollama client to 0.4.5 ([#345](https://github.com/timescale/pgai/issues/345)) ([c579238](https://github.com/timescale/pgai/commit/c57923804532980d8b2bb5e3b47a927c48f55df0))
+
+
+### Bug Fixes
+
+* handle 'null' value in chunking 'chunk_column' ([#340](https://github.com/timescale/pgai/issues/340)) ([f283b6c](https://github.com/timescale/pgai/commit/f283b6cecd7da42a5197da6219b990598e19f9f0))
+
+
+### Miscellaneous
+
+* fix broken pgai build by pinning hatchling ([#308](https://github.com/timescale/pgai/issues/308)) ([5441f2d](https://github.com/timescale/pgai/commit/5441f2d3445b1f2afc85ce34b220002b8e4cf08f))
+* register postgres_params custom pytest.mark ([#327](https://github.com/timescale/pgai/issues/327)) ([89039b2](https://github.com/timescale/pgai/commit/89039b2181192191dad48dc8206e76b17643e129))
+* split embedders in individual files ([#315](https://github.com/timescale/pgai/issues/315)) ([77673ee](https://github.com/timescale/pgai/commit/77673eee81191c7f2c8966010fe8f04d9a929dee))
+
 ## [0.3.0](https://github.com/timescale/pgai/compare/pgai-v0.2.1...pgai-v0.3.0) (2024-12-10)
 
 
diff --git a/projects/pgai/pgai/__init__.py b/projects/pgai/pgai/__init__.py
index 493f7415d..6a9beea82 100644
--- a/projects/pgai/pgai/__init__.py
+++ b/projects/pgai/pgai/__init__.py
@@ -1 +1 @@
-__version__ = "0.3.0"
+__version__ = "0.4.0"