diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 82b1bf8e..57a21692 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -137,7 +137,7 @@ jobs:
     runs-on: *runs-on-ubuntu
     strategy:
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.15"]
     outputs:
       python-key: ${{ steps.generate-python-key.outputs.key }}
     steps:
diff --git a/README.md b/README.md
index 4146560d..2ead89e4 100644
--- a/README.md
+++ b/README.md
@@ -147,6 +147,9 @@ Set the minimum Python syntax version to **3.13**. (Default: **3.10**)
 **`--py314-plus`**  
 Set the minimum Python syntax version to **3.14**. (Default: **3.10**)
 
+**`--py315-plus`**  
+Set the minimum Python syntax version to **3.15**. (Default: **3.10**)
+
 
 ## License
 This Project is licensed under the MIT license.
diff --git a/pyproject.toml b/pyproject.toml
index 0f05309e..3b5b642d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,6 +19,7 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
+    "Programming Language :: Python :: 3.15",
     "Topic :: Software Development",
 ]
 requires-python = ">=3.10"
diff --git a/python_typing_update/__main__.py b/python_typing_update/__main__.py
index 7465dad8..81d40d91 100644
--- a/python_typing_update/__main__.py
+++ b/python_typing_update/__main__.py
@@ -126,6 +126,10 @@ async def async_main(argv: list[str] | None = None) -> int:
         '--py314-plus',
         action='store_const', dest='min_version', const=(3, 14),
     )
+    group_py_version.add_argument(
+        '--py315-plus',
+        action='store_const', dest='min_version', const=(3, 15),
+    )
 
     argv = argv or sys.argv[1:]
     args = parser.parse_args(argv)
diff --git a/tests/test_main.py b/tests/test_main.py
index 19d99a1c..19826c88 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -111,6 +111,7 @@ async def test_main(
         pytest.param(['--py312-plus']),
         pytest.param(['--py313-plus']),
         pytest.param(['--py314-plus']),
+        pytest.param(['--py315-plus']),
     ),
 )
 async def test_py_version(