diff --git a/pyproject.toml b/pyproject.toml
index 856649b..16ea828 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "pyuff"
-version = "2.4.2"
+version = "2.4.3"
 authors = [{name = "Primož Čermelj, Janko Slavič", email = "janko.slavic@fs.uni-lj.si"}]
 maintainers = [{name = "Janko Slavič et al.", email = "janko.slavic@fs.uni-lj.si"}]
 license = "MIT"
@@ -38,3 +38,6 @@ dev = [
 homepage = "https://github.com/ladisk/pyuff"
 documentation = "https://pyuff.readthedocs.io/en/latest/"
 source = "https://github.com/ladisk/pyuff"
+
+[tool.hatch.build.targets.sdist]
+include = ["pyuff/*"]
\ No newline at end of file
diff --git a/pyuff/__init__.py b/pyuff/__init__.py
index 62910db..68be8b9 100644
--- a/pyuff/__init__.py
+++ b/pyuff/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "2.4.2"
+__version__ = "2.4.3"
 from .pyuff import *
 from .datasets import *