diff --git a/mac.spec b/mac.spec
index 642d960..8093e9d 100644
--- a/mac.spec
+++ b/mac.spec
@@ -33,7 +33,7 @@ exe = EXE(pyz,
           debug=False,
           bootloader_ignore_signals=False,
           strip=False,
-          upx=True,
+          upx=False,
           upx_exclude=[],
           runtime_tmpdir=None,
           console=False )