diff --git a/pyproject.toml b/pyproject.toml
index fe5bf38..6153f96 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "kallisto"
-version = "1.0.2"
+version = "1.0.3"
 description = "The Kallisto software enables the efficient calculation of atomic features that can be used within a quantitative structure-activity relationship (QSAR) approach. Furthermore, several modelling helpers are implemented."
 license = "Apache 2.0"
 readme = "README.md"
diff --git a/src/kallisto/__init__.py b/src/kallisto/__init__.py
index 5becc17..976498a 100644
--- a/src/kallisto/__init__.py
+++ b/src/kallisto/__init__.py
@@ -1 +1 @@
-__version__ = "1.0.0"
+__version__ = "1.0.3"
diff --git a/tests/test_version.py b/tests/test_version.py
index 553a0be..d79b278 100644
--- a/tests/test_version.py
+++ b/tests/test_version.py
@@ -4,4 +4,4 @@
 
 
 def test_version():
-    assert __version__ == "1.0.0"
+    assert __version__ == "1.0.3"