X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/7000c1ebd170001e10807b583a29e9e7e9570b23..29a6508d68cc93c376a8ba28559b7404933b5546:/sdk/python/setup.py

diff --git a/sdk/python/setup.py b/sdk/python/setup.py
index 126b12f156..d28df09987 100644
--- a/sdk/python/setup.py
+++ b/sdk/python/setup.py
@@ -55,6 +55,7 @@ setup(name='arvados-python-client',
           'ruamel.yaml >=0.15.54, <0.17.11',
           'setuptools',
           'ws4py >=0.4.2',
+          'protobuf<4.0.0dev'
       ],
       classifiers=[
           'Programming Language :: Python :: 3',