diff --git a/pyproject.toml b/pyproject.toml
index 533aeb93..7dcdaf65 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ maintainers = [
 ]
 description = "A process-based model for simulating supply-limited aeolian sediment transport"
 readme = "README.md"
-requires-python = ">=3.9, <4"
+requires-python = ">=3.9, <3.14"
 license = {file = "LICENSE.txt"}
 keywords = ["aeolian sediment", "transport", "model", "deltares", "tudelft"]
 dependencies = [