diff --git a/pyproject.toml b/pyproject.toml
index 8dae474..f8aacda 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -93,7 +93,7 @@ develop = [
   "black<25",
   "mypy<1.12",
   "poethepoet<0.31",
-  "pyproject-fmt<2.3",
+  "pyproject-fmt<2.6",
   "ruff<0.9",
   "validate-pyproject<0.19",
 ]