diff --git a/pyproject.toml b/pyproject.toml
index 17e8e3f..a939d11 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,6 +35,7 @@ classifiers = [
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
+  "Programming Language :: Python :: 3.13",
 ]
 dynamic = [
   "version",
@@ -115,6 +116,9 @@ count = true
 quiet-level = 3
 ignore-words-list = "master"
 
+[tool.pyproject-fmt]
+max_supported_python = "3.13"
+
 [tool.coverage]
 html.show_contexts = true
 html.skip_covered = false