diff --git a/pyproject.toml b/pyproject.toml
index 32c3eb7..00f1653 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -88,7 +88,7 @@ develop = [
   "black<24",
   "mypy==1.6.1",
   "poethepoet<1",
-  "pyproject-fmt<1.5",
+  "pyproject-fmt<1.6",
   "ruff==0.1.4",
   "validate-pyproject<0.16",
 ]