diff --git a/setup/installer/osx/app/main.py b/setup/installer/osx/app/main.py
index c84778a719..14c1bfc7d7 100644
--- a/setup/installer/osx/app/main.py
+++ b/setup/installer/osx/app/main.py
@@ -348,7 +348,7 @@ class Py2App(object):
                 CFBundleSignature='????',
                 CFBundleExecutable='calibre',
                 CFBundleDocumentTypes=docs,
-                LSMinimumSystemVersion='10.5.2',
+                LSMinimumSystemVersion='10.7.2',
                 LSRequiresNativeExecution=True,
                 NSAppleScriptEnabled=False,
                 NSHumanReadableCopyright='Copyright 2010, Kovid Goyal',