diff --git a/.github/workflows/address-sanitizer.yml b/.github/workflows/address-sanitizer.yml
index 8a990c9..f2db862 100644
--- a/.github/workflows/address-sanitizer.yml
+++ b/.github/workflows/address-sanitizer.yml
@@ -22,7 +22,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: 3.12
+          python-version: 3.13
 
       - name: Install dependencies
         run: |
diff --git a/.github/workflows/clang-analyzer.yml b/.github/workflows/clang-analyzer.yml
index ea65fc1..56cd6a5 100644
--- a/.github/workflows/clang-analyzer.yml
+++ b/.github/workflows/clang-analyzer.yml
@@ -22,7 +22,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: 3.12
+          python-version: 3.13
 
       - name: Install dependencies
         run: |
diff --git a/.github/workflows/test-libmaxminddb.yml b/.github/workflows/test-libmaxminddb.yml
index 1321aca..4eb8063 100644
--- a/.github/workflows/test-libmaxminddb.yml
+++ b/.github/workflows/test-libmaxminddb.yml
@@ -14,7 +14,7 @@ jobs:
         # We don't test on Windows currently due to issues
         # build libmaxminddb there.
         platform: [macos-latest, ubuntu-latest]
-        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]
 
     name: Python ${{ matrix.python-version }} on ${{ matrix.platform }}
     runs-on: ${{ matrix.platform }}
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index fda08f1..78badd5 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         platform: [macos-latest, ubuntu-latest, windows-latest]
-        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]
 
     name: Python ${{ matrix.python-version }} on ${{ matrix.platform }}
     runs-on: ${{ matrix.platform }}
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index e806a2c..cc978b9 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -3,4 +3,4 @@ version: 2
 build:
   os: ubuntu-22.04
   tools:
-    python: "3.12"
+    python: "3.13"
diff --git a/pyproject.toml b/pyproject.toml
index 6bf9d6c..cffa071 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,6 +25,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: Internet",
     "Topic :: Internet :: Proxy Servers",
 ]
diff --git a/setup.cfg b/setup.cfg
index 5e43843..8ec9fb3 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -15,7 +15,7 @@ python_requires = >=3.8
 maxminddb = extension.pyi; py.typed
 
 [tox:tox]
-envlist = {py38,py39,py310,py311,py312}-test,py312-{black,lint,flake8,mypy}
+envlist = {py38,py39,py310,py311,py312,py313}-test,py313-{black,lint,flake8,mypy}
 
 [gh-actions]
 python =
@@ -23,25 +23,26 @@ python =
     3.9: py39
     3.10: py310
     3.11: py311
-    3.12: py312,black,lint,flake8,mypy
+    3.12: py312
+    3.13: py313,black,lint,flake8,mypy
 
-[testenv:{py38,py39,py310,py311,py312}-test]
+[testenv:{py38,py39,py310,py311,py312,py313}-test]
 deps = pytest
 commands = pytest tests
 passenv = *
 
-[testenv:py312-black]
+[testenv:py313-black]
 deps = black
 commands = black --check --diff .
 
-[testenv:py312-lint]
+[testenv:py313-lint]
 deps = pylint
 commands = pylint maxminddb
 
-[testenv:py312-flake8]
+[testenv:py313-flake8]
 deps = flake8
 commands = flake8 maxminddb
 
-[testenv:py312-mypy]
+[testenv:py313-mypy]
 deps = mypy
 commands = mypy maxminddb tests