diff --git a/ci/windows/requirements.txt b/ci/windows/requirements.txt
index 27e3de7..9126f8a 100644
--- a/ci/windows/requirements.txt
+++ b/ci/windows/requirements.txt
@@ -1,4 +1 @@
-altgraph==0.17.2
-macholib==1.15.2
-pyinstaller==4.6
-pyinstaller-hooks-contrib==2021.3
+pyinstaller==3.6