diff --git a/pyproject.toml b/pyproject.toml
index 6b81fed6..52d8d147 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -56,7 +56,7 @@ optional-dependencies.dev = [
     "pylint==3.3.2",
     "pylint-per-file-ignores==1.3.2",
     "pyproject-fmt==2.5.0",
-    "pyright==1.1.390",
+    "pyright==1.1.391",
     "pyroma==4.2",
     "pytest==8.3.4",
     "pytest-cov==6.0.0",