diff --git a/AUTHORS.rst b/AUTHORS.rst
index ba1ad2b..ae2df1e 100644
--- a/AUTHORS.rst
+++ b/AUTHORS.rst
@@ -27,6 +27,10 @@ Upcoming release
       `[project]` section in `pyproject.toml`.
     * Andreas Thum
 
+0.4.0
+
+    * Andreas Thum
+
 0.3.0
 
     * Andreas Thum
diff --git a/pyproject.toml b/pyproject.toml
index 85fc915..49a3a27 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,8 +6,9 @@
 [project]
 # Project metadata.  See
 # https://packaging.python.org/en/latest/specifications/declaring-project-metadata/
+# Keep in sync with CITATION.cff and AUTHORS.rst!
 name = "hpcss"
-version = "0.3.0"
+version = "0.4.0"
 description = "Slurm scripts to run and analyze MD simulations on HPC clusters"
 readme = "README.rst"
 requires-python = ">=3.8, <3.12"