diff --git a/requirements-dev.txt b/requirements-dev.txt
index 0d397261..57ccedca 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 -r requirements.txt
 flake8==7.0.0
-pyinstaller==6.8.0
+pyinstaller==6.9.0
 pytest==8.2.2
 pytest-cov==5.0.0
 rstcheck[sphinx]==6.2.4