diff --git a/docs/conf.py b/docs/conf.py
index d0466ff..351ecf1 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -23,9 +23,9 @@
 author = 'Qiang Zhu, Howard Yanxon, David Zagaceta'
 
 # The short X.Y version
-version = '0.2.2'
+version = '0.2.3'
 # The full version, including alpha/beta/rc tags
-release = 'Dec 2022'
+release = 'June 2023'
 
 
 # -- General configuration ---------------------------------------------------
diff --git a/docs/index.rst b/docs/index.rst
index d6495c5..98deb7c 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -2,7 +2,7 @@ PyXtal_FF
 ======================================
 The aim of PyXtalFF project is to provide an automated computational infrastructure to train the interatomic potentials for inorganic periodic systems from high-end quantum mechanical calculations.
 
-The current version is ``0.2.2`` at `GitHub <https://github.com/qzhu2017/pyxtal_ff>`_. 
+The current version is ``0.2.3`` at `GitHub <https://github.com/qzhu2017/pyxtal_ff>`_. 
 
 Expect updates upon request by `Qiang Zhu\'s group <https://qzhu2017.github.io>`_ at University of Nevada Las Vegas.
 
diff --git a/pyxtal_ff/version.py b/pyxtal_ff/version.py
index 020ed73..d93b5b2 100644
--- a/pyxtal_ff/version.py
+++ b/pyxtal_ff/version.py
@@ -1 +1 @@
-__version__ = '0.2.2'
+__version__ = '0.2.3'