diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 65cf340..1d0ba01 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,11 +9,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
         os: [ubuntu-latest, macos-latest]
         include:
-          - python-version: 3.7
-            py: py37
           - python-version: 3.8
             py: py38
           - python-version: 3.9
@@ -22,6 +20,8 @@ jobs:
             py: py310
           - python-version: '3.11'
             py: py311
+          - python-version: '3.12'
+            py: py312
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 9b71ebc..70b00f0 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -92,7 +92,7 @@ Before you submit a pull request, check that it meets these guidelines:
 2. If the pull request adds functionality, the docs should be updated. Put
    your new functionality into a function with a docstring, and add the
    feature to the list in README.rst.
-3. The pull request should work for Python 3.7+. Check 
+3. The pull request should work for Python 3.8+. Check 
    https://github.com/tsroten/dragonmapper/actions/workflows/ci.yml
    and make sure that the tests pass for all supported Python versions.
 4. If you want to receive credit, add your name to `AUTHORS.rst`.
diff --git a/pyproject.toml b/pyproject.toml
index 1b6e6e6..1681388 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ license = "MIT"
 authors = [
     { name = "Thomas Roten", email = "thomas@roten.us" },
 ]
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 keywords = [
     "chinese",
     "mandarin",
@@ -32,11 +32,11 @@ classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "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",
 ]
@@ -90,7 +90,7 @@ run = [
 ]
 
 [[tool.hatch.envs.test.matrix]]
-python = ["3.7", "3.8", "3.9", "3.10", "3.11"]
+python = ["3.8", "3.9", "3.10", "3.11", "3.12"]
 
 [tool.hatch.envs.style]
 detached = true