diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index d588d8f..d63abc0 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.8, 3.9, "3.10", "3.11", "3.12"]
+        python-version: [3.9, "3.10", "3.11", "3.12", "3.13"]
 
     steps:
 
diff --git a/pymispwarninglists/api.py b/pymispwarninglists/api.py
index 5f6e984..28c6a70 100644
--- a/pymispwarninglists/api.py
+++ b/pymispwarninglists/api.py
@@ -1,6 +1,8 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
+from __future__ import annotations
+
 import json
 import logging
 import sys
diff --git a/tests/tests.py b/tests/tests.py
index d5c7327..d2771d3 100644
--- a/tests/tests.py
+++ b/tests/tests.py
@@ -1,6 +1,8 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
+from __future__ import annotations
+
 import json
 import os
 import unittest