diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cdff01f..08e4e56 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.8, 3.9, "3.10", "3.11"]
+        python-version: [3.8, 3.9, "3.10", "3.11", "3.12"]
 
     steps:
     - uses: actions/checkout@v3
diff --git a/pyproject.toml b/pyproject.toml
index d7c2e77..8d49ff4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ description = "A Tensor Creation and Label Reconstruction for Sequence Labeling"
 authors = [
     {name = "Yasufumi Taniguchi", email = "yasufumi.taniguchi@gmail.com"},
 ]
-requires-python = ">=3.8,<3.12"
+requires-python = ">=3.8,<3.13"
 dynamic = ["version"]
 readme = {"file" = "README.md", "content-type" = "text/markdown"}
 license = {text = "MIT"}
@@ -13,7 +13,8 @@ classifiers = [
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
-    "Programming Language :: Python :: 3.11"
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
 ]
 
 [project.optional-dependencies]