diff --git a/src/tad_dftd3/__version__.py b/src/tad_dftd3/__version__.py
index eb4aebe..64d5276 100644
--- a/src/tad_dftd3/__version__.py
+++ b/src/tad_dftd3/__version__.py
@@ -15,4 +15,4 @@
 """
 Version module for *tad-dftd3*.
 """
-__version__ = "0.3.0"
+__version__ = "0.4.0"