diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9a1037b..d1de287 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,29 @@
 # Changelog
 
+## v2.4.0 (2024-01-15)
+
+### Feature
+
+- check provided email address with pyisemail
+
+### Fix
+
+- remove unnecessary markdown message in request field
+
+### Style
+
+- fix run-on sentence
+
+### Chores/Misc
+
+- add build section to read the docs config
+- add regex for version line in citation file
+- add citation.cff to list of files with version
+- add contributing guidelines
+- add code of conduct
+- add citation file
+- update support.md links
+
 ## v2.3.1 (2023-07-17)
 
 ### Docs
diff --git a/CITATION.cff b/CITATION.cff
index 65e2e2e..085467a 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -17,4 +17,4 @@ keywords:
   - ckanext
   - contact
 license: GPL-3.0-or-later
-version: 2.3.1
+version: 2.4.0
diff --git a/pyproject.toml b/pyproject.toml
index 433af3c..67795f2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "ckanext-contact"
-version = "2.3.1"
+version = "2.4.0"
 description = "A CKAN extension for adding popup contact forms to pages."
 readme = "README.md"
 requires-python = ">=3.6"
@@ -56,7 +56,7 @@ exclude = ["tests", "docs"]
 
 [tool.commitizen]
 name = "cz_nhm"
-version = "2.3.1"
+version = "2.4.0"
 tag_format = "v$version"
 update_changelog_on_bump = true
 changelog_incremental = true