diff --git a/package/Build-Mac.sh b/package/Build-Mac.sh
index 343843d..af657cf 100755
--- a/package/Build-Mac.sh
+++ b/package/Build-Mac.sh
@@ -16,6 +16,7 @@ source unibenv/bin/activate
 
 echo Installing pip dependencies ...
 python -m pip install -U pip
+python -m pip install -U setuptools
 python -m pip install -U swig
 python -m pip install wxPython>=4.2.0
 python -m pip install .