diff --git a/pyproject.toml b/pyproject.toml
index 5ccbc92b3..c81971ece 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ authors = [
   { name = "Martin K. Scherer", email = "martin.scherer@bam.de" },
   { name = "Michael Winkler", email = "michael.winkler@bam.de" },
 ]
-requires-python = ">=3.9,<3.13"
+requires-python = ">=3.9,<3.14"
 classifiers = [
   "Development Status :: 4 - Beta",
   "Intended Audience :: Education",