diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 749d897..c68ac58 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -20,6 +20,7 @@ jobs:
         - "3.10"
         - "3.11"
         - "3.12"
+        - "3.13"
 
     steps:
       - uses: actions/checkout@v4
diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 72738ff..40e6e3f 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,6 +1,8 @@
 4.2.0 (to be released)
 ------------------
 
+* Added support for Python 3.13.
+
 * Drop support for EOL Python 3.8.
 
 * Removed unused pytest-runner
diff --git a/setup.cfg b/setup.cfg
index a717acc..8d2b2e7 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -20,6 +20,7 @@ classifiers =
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
+    Programming Language :: Python :: 3.13
     Topic :: Internet :: WWW/HTTP
 
 [options]
diff --git a/tox.ini b/tox.ini
index 95eb7f9..e3bae91 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py{39,310,311,312}
+    py{39,310,311,312,313}
 
 [testenv]
 extras = tests