diff --git a/pyproject.toml b/pyproject.toml
index 79f42687f..1fbe6949a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -65,7 +65,7 @@ dev = [
     "click>=7.0,<=8.1.7",
     "hypothesis>=6.104.2,<=6.108.5",
     "pdoc<=14.5.1,>=14.5.1",
-    "pyinstaller==6.8.0",
+    "pyinstaller==6.9.0",
     "pytest-asyncio>=0.23.6,<=0.23.8",
     "pytest-cov>=5.0.0,<=5.0.0",
     "pytest-timeout>=2.3.1,<=2.3.1",