diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 7feb08f6..c42b6860 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 2.3.1-dev2
+current_version = 2.3.1
 commit = True
 tag = True
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(\-(?P<release>[a-z]+))?
diff --git a/aiida_kkr/__init__.py b/aiida_kkr/__init__.py
index ba517ee5..7235612e 100644
--- a/aiida_kkr/__init__.py
+++ b/aiida_kkr/__init__.py
@@ -2,4 +2,4 @@
 AiiDA KKR
 """
 
-__version__ = '2.3.1-dev2'
+__version__ = '2.3.1'
diff --git a/pyproject.toml b/pyproject.toml
index 751d80e5..022b4bef 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "aiida-kkr"
-version = "2.3.1-dev2"
+version = "2.3.1"
 description = "AiiDA plugin for the JuKKR codes"
 classifiers = [
     "License :: OSI Approved :: MIT License",