ensure protobuf >= 3.7.0 is used since older versions had
a bug that affected parsing some METADATA.pb files correctly.
(issue
@@ -64,7 +64,8 @@ setup(
'fontTools[ufo,lxml]>=3.34', # 3.34 fixed some CFF2 issues, including calcBounds
'lxml',
'opentype-sanitizer',
- 'protobuf',
+ 'protobuf>=3.7.0', # 3.7.0 fixed a bug on parsing some METADATA.pb files
+ # (see https://github.com/googlefonts/fontbakery/issues/2200)
'requests',
'ttfautohint-py',
'ufolint',
