diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9a32cab..5062ce7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,23 @@
 # CHANGELOG
 
+## v0.4.0 (2024-03-24)
+
+### Chore
+
+* chore: update release worklow ([`cbe8de9`](https://github.com/crabisoft/pdbstore/commit/cbe8de9f357f972c9ccc58ea50f97fd7827a9d7e))
+
+### Documentation
+
+* docs: improve documentation (#23) ([`94f8d66`](https://github.com/crabisoft/pdbstore/commit/94f8d661173e65a4b958bd54ec0f7a43fdf8ca1d))
+
+### Feature
+
+* feat(command): display total file size for unused command (#22) ([`bed12a0`](https://github.com/crabisoft/pdbstore/commit/bed12a0449a265534cc58214eb6e12babb4f6a7e))
+
+* feat(command): add --days option to unused command (#21)
+
+BEAKING CHANGE: DATE positional argument has been converted into an option ([`90ff4c1`](https://github.com/crabisoft/pdbstore/commit/90ff4c1de6bf86324a85d1201377de79bc188208))
+
 ## v0.3.0 (2024-03-23)
 
 ### Feature
@@ -10,9 +28,9 @@
 
 ### Fix
 
-* fix(transaction): no transaction created if file already exists from store (#19) ([`1754d19`](https://github.com/crabisoft/pdbstore/commit/1754d19153c99006d5d1b61cf55679f319c0934d))
+* fix(transaction): no transaction created if file already exists from … (#19) ([`1754d19`](https://github.com/crabisoft/pdbstore/commit/1754d19153c99006d5d1b61cf55679f319c0934d))
 
-### Documentation
+### Unknown
 
 * doc: refactor documentation (#20) ([`c600537`](https://github.com/crabisoft/pdbstore/commit/c600537d6c9b348ecf0004d11a0920cb94979d7d))
 
@@ -34,7 +52,7 @@
 
 * test: add dedicated compression test when supported (#14) ([`3b6dfda`](https://github.com/crabisoft/pdbstore/commit/3b6dfdab3eb58d35735d0149d480cc9488548ff6))
 
-### Documentation
+### Unknown
 
 * doc: add promote command (#16) ([`c0e5328`](https://github.com/crabisoft/pdbstore/commit/c0e5328e1f725bc7eeac4fc98f802effd51f7bc0))
 
diff --git a/pdbstore/_version.py b/pdbstore/_version.py
index 0cb9570..ce09276 100644
--- a/pdbstore/_version.py
+++ b/pdbstore/_version.py
@@ -3,4 +3,4 @@
 __email__ = "jrp@crabisoft.fr"
 __license__ = "MIT"
 __title__ = "pdbstore"
-__version__ = "0.3.0"
+__version__ = "0.4.0"
diff --git a/pyproject.toml b/pyproject.toml
index 7fd548d..afff341 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pdbstore"
-version = "0.3.0"
+version = "0.4.0"
 description="manage PDB and PE files through a local symbols store"
 requires-python = ">=3.8"
 license = { text = "MIT" }