diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 714c6b5..39f454e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
     strategy:
       max-parallel: 5
       matrix:
-        python-version: [3.8, 3.9, "3.10", "3.11", "3.12"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
         os: [ubuntu-latest, windows-latest, macos-latest]
         # Just to slim down the test matrix:
         exclude:
@@ -43,7 +43,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.11'
+          python-version: '3.13'
       - name: Install Python dependencies
         run: |
           python -m pip install --upgrade hatch
diff --git a/pyproject.toml b/pyproject.toml
index 20d61e9..7c7d715 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,6 +23,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: Software Development :: Libraries :: Python Modules",
 ]
 dependencies = [
@@ -72,7 +73,7 @@ test = [
 ]
 
 [[tool.hatch.envs.test.matrix]]
-python = ["3.8", "3.9", "3.10", "3.11", "3.12"]
+python = ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
 type = ["default"]
 
 [tool.hatch.envs.doc]
@@ -106,7 +107,7 @@ format = [
 
 [tool.black]
 line-length = 100
-target-version = ["py311"]
+target-version = ["py313"]
 skip-string-normalization = true
 
 [tool.isort]