diff --git a/pyproject.toml b/pyproject.toml
index 7bce6d1..0f84bb1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -66,7 +66,7 @@ develop = [
   "isort<6",
   "poethepoet<0.25",
   "proselint==0.13",
-  "pyproject-fmt<1.3",
+  "pyproject-fmt<1.4",
   "ruff==0.1.1",
   "validate-pyproject<0.16",
 ]