diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4f91c3ed3..c5373735b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -62,9 +62,12 @@ jobs:
             - os: ubuntu-22.04
               python-version: '3.11'
               toxenv: py311-fuse3
-            - os: ubuntu-22.04
+            - os: ubuntu-24.04
               python-version: '3.12'
               toxenv: py312-fuse3
+            - os: ubuntu-24.04
+              python-version: '3.13-dev'
+              toxenv: py313-fuse3
 
     env:
       TOXENV: ${{ matrix.toxenv }}
diff --git a/pyproject.toml b/pyproject.toml
index 3003d9bbb..46341a8f3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,6 +24,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: Security :: Cryptography",
     "Topic :: System :: Archiving :: Backup",
 ]
diff --git a/tox.ini b/tox.ini
index 10f3e7f30..19b82b893 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,7 +2,7 @@
 # fakeroot -u tox --recreate
 
 [tox]
-envlist = py{39,310,311,312}-{none,fuse2,fuse3},docs
+envlist = py{39,310,311,312,313}-{none,fuse2,fuse3},docs
 minversion = 3.2
 requires =
 	pkgconfig