diff --git a/pyproject.toml b/pyproject.toml
index 7481f90..6db596f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "ja-timex"
-version = "0.2.7"
+version = "0.2.8"
 description = "Analyze and parse natural language temporal expression from Japanese sentences"
 authors = ["Yuki Okuda <y.okuda@dr-ubie.com>"]
 license = "MIT"
@@ -16,6 +16,7 @@ classifiers = [
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "Topic :: Software Development :: Libraries :: Python Modules",
     "Topic :: Text Processing :: Linguistic",
 ]