diff --git a/pyproject.toml b/pyproject.toml
index 31318ec1..61dcfd49 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -55,7 +55,7 @@ optional-dependencies.dev = [
     "pygments==2.20.0",
     "pylint[spelling]==4.0.5",
     "pylint-per-file-ignores==3.2.0",
-    "pyproject-fmt==2.20.0",
+    "pyproject-fmt==2.21.0",
     "pyrefly==0.58.0",
     "pyright==1.1.408",
     "pyroma==5.0.1",