diff --git a/CHANGES.rst b/CHANGES.rst
index 28f4c81..0aa8f97 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,14 @@
 Change logs
 ===========
 
+ver 1.2.1
+=========
+
+:date: 2021-06-13
+:base: Reveal.js 4.1.3 (updated)
+
+(Only update reveal.js)
+
 ver 1.2.0
 =========
 
diff --git a/pyproject.toml b/pyproject.toml
index ba059c4..2c7bfa0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "sphinx-revealjs"
-version = "1.2.0"
+version = "1.2.1"
 description = "Sphinx extension with theme to generate Reveal.js presentation"
 authors = ["Kazuya Takei <myself@attakei.net>"]
 classifiers = [
diff --git a/setup.cfg b/setup.cfg
index fbec17b..70ebb7f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.2.0
+current_version = 1.2.1
 commit = False
 tag = False
 
@@ -33,4 +33,3 @@ include_trailing_comma = true
 
 [nosetests]
 match = (?:\b|_)[Tt]est(ing|_(.+))$
-
diff --git a/sphinx_revealjs/__init__.py b/sphinx_revealjs/__init__.py
index f027f30..84d315b 100644
--- a/sphinx_revealjs/__init__.py
+++ b/sphinx_revealjs/__init__.py
@@ -1,6 +1,6 @@
 """Root module for sphinx-revealjs."""
 
-__version__ = "1.2.0"
+__version__ = "1.2.1"
 
 
 from sphinx.application import Sphinx