diff --git a/nicovideo/__init__.py b/nicovideo/__init__.py
index 58dd696..bddf6e5 100644
--- a/nicovideo/__init__.py
+++ b/nicovideo/__init__.py
@@ -12,7 +12,7 @@
 import json5
 from bs4 import BeautifulSoup as bs
 
-__version__ = '3.1.1'
+__version__ = '3.1.2'
 
 class Error():
     """ Errors """
diff --git a/pyproject.toml b/pyproject.toml
index 444fc48..2b39f5b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "nicovideo.py"
-version = "3.1.1"
+version = "3.1.2"
 authors = [{name = "okaits#7534", email = "okaits@okaits7534.net"}]
 license = {text = "GNU Lesser General Public License 3.0"}
 description = "Get nicovideo's video metadata."