diff --git a/doc/changes/0.4.rst b/doc/changes/0.4.rst
index 3a998c4d..165d23cd 100644
--- a/doc/changes/0.4.rst
+++ b/doc/changes/0.4.rst
@@ -1,6 +1,6 @@
 .. _changes_0_4:
 
-Version 0.4 (in progress)
+Version 0.4 (2023/04/08)
 -------------------------
 - Add :ref:`GroupLasso Estimator <skglm.GroupLasso>` (PR: :gh:`228`)
 - Add support and tutorial for positive coefficients to :ref:`Group Lasso Penalty <skglm.penalties.WeightedGroupL2>` (PR: :gh:`221`)
diff --git a/pyproject.toml b/pyproject.toml
index 34ec1a49..a7529dbf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -55,3 +55,7 @@ doc = [
     "furo",
     "lifelines",
 ]
+
+
+[tool.setuptools]
+license-files = []
diff --git a/skglm/__init__.py b/skglm/__init__.py
index d80de3c1..2348fcf9 100644
--- a/skglm/__init__.py
+++ b/skglm/__init__.py
@@ -1,4 +1,4 @@
-__version__ = '0.4dev'
+__version__ = '0.4'
 
 from skglm.estimators import (  # noqa F401
     Lasso, WeightedLasso, ElasticNet, MCPRegression, MultiTaskLasso, LinearSVC,