diff --git a/pyproject.toml b/pyproject.toml
index d544651..f7f0aeb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,6 +16,7 @@ classifiers = [
     "Programming Language :: Python :: 3 :: Only",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
 ]
 # Build system information and other project-specific configuration below.
 dependencies = [
@@ -63,6 +64,7 @@ Issue-Tracker = "https://github.com/Hochfrequenz/rebdhuhn/issues"
 
 [tool.black]
 line-length = 120
+target_version = ["py311", "py312", "py313"]
 
 [tool.isort]
 line_length = 120