diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9e262ed6..9f640f19 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -50,7 +50,7 @@ jobs:
     strategy:
       matrix:
         os: [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"]
         include:
         - os: macos-13
           python-version: "3.10"
@@ -88,7 +88,7 @@ jobs:
       with:
         fetch-depth: 0  # required for setuptools_scm
     - name: Build wheels
-      uses: pypa/cibuildwheel@v2.17.0
+      uses: pypa/cibuildwheel@v2.21.3
       env:
         CIBW_BUILD: "cp*-manylinux_x86_64 cp3*-win_amd64 cp3*-macosx_x86_64 cp3*-macosx_arm64"
         CIBW_SKIP: "cp37-*"
diff --git a/CHANGES.rst b/CHANGES.rst
index d8bf3d47..99bbda17 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,11 @@
 Changelog
 =========
 
+unreleased
+----------
+
+* Added support for Python 3.13
+
 v1.2.2 (2024-10-04)
 -------------------
 * :pr:`139`: Fix an error that occurred when decoding BAM records with missing
diff --git a/tox.ini b/tox.ini
index 3bee4262..ba091dc8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = flake8,black,mypy,docs,py38,py39,py310,py311,py312
+envlist = flake8,black,mypy,docs,py38,py39,py310,py311,py312,py313
 isolated_build = True
 
 [testenv]