diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 35ab3d6..daadc52 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.4.1
+current_version = 0.4.2
 
 [comment]
 comment = The contents of this file cannot be merged with that of pyproject.toml until https://github.com/c4urself/bump2version/issues/42 is resolved
diff --git a/CITATION.cff b/CITATION.cff
index 89c6c1f..79be467 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -44,7 +44,7 @@ authors:
     orcid: "https://orcid.org/0000-0002-2546-4528"
     affiliation: "Netherlands eScience Center"
 
-version: "0.4.1"
+version: "0.4.2"
 repository-code: "https://github.com/AI4S2S/lilio"
 keywords:
   - calendar
diff --git a/docs/conf.py b/docs/conf.py
index b89969c..e485f1f 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -26,7 +26,7 @@
 # built documents.
 #
 # The short X.Y version.
-version = "0.4.1"
+version = "0.4.2"
 # The full version, including alpha/beta/rc tags.
 release = version
 
diff --git a/lilio/__init__.py b/lilio/__init__.py
index 4b57d3e..7105261 100644
--- a/lilio/__init__.py
+++ b/lilio/__init__.py
@@ -76,7 +76,7 @@
 
 __author__ = "Claire Donnelly"
 __email__ = "c.donnelly@esciencecenter.nl"
-__version__ = "0.4.1"
+__version__ = "0.4.2"
 
 __all__ = [
     "Calendar",