diff --git a/build/PythonPackages/build.sh b/build/PythonPackages/build.sh
index 58d2676..32e1975 100755
--- a/build/PythonPackages/build.sh
+++ b/build/PythonPackages/build.sh
@@ -5,7 +5,7 @@ cd `dirname $0`
 export PIP_DOWNLOAD_CACHE=`pwd`/pip_cache
 
 $prefix/bin/pip3 install -r ../../../openmedialibrary/requirements.txt
-$prefix/bin/pip3 install pillow
+$prefix/bin/pip3 install -U pillow
 
 install_name_tool -change "$prefix/lib/libjpeg.62.dylib" "@rpath/libjpeg.62.dylib" $prefix/lib/python3.4/site-packages/PIL/_imaging.so
 install_name_tool -change "$prefix/lib/libz.1.dylib" "@rpath/libz.1.dylib" $prefix/lib/python3.4/site-packages/PIL/_imaging.so
diff --git a/make.sh b/make.sh
index 9c22748..1f140e5 100755
--- a/make.sh
+++ b/make.sh
@@ -22,6 +22,7 @@ done
 cp -a lib/python3.4 dist/lib/python3.4
 cp -a include/python3.4m dist/include/python3.4m
 rm -r dist/lib/python3.4/test
+find dist/ -name __pycache__ -type d | xargs rm -r
 
 #    libboost_system.dylib \
 #    libtorrent-rasterbar.7.dylib \