diff --git a/pyproject.toml b/pyproject.toml
index 87bd7d3..16d05ce 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,6 +14,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
 ]
 
 requires-python = ">=3.9"
diff --git a/tox.ini b/tox.ini
index a708798..1e99877 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py3{9,10,11,12}
+envlist = py3{9,10,11,12,13}
 
 [base]
 deps =