diff --git a/sdks/python/setup.py b/sdks/python/setup.py
index a174ced0d7b2..2b3b3255aa77 100644
--- a/sdks/python/setup.py
+++ b/sdks/python/setup.py
@@ -106,6 +106,7 @@ def get_version():
     'oauth2client>=2.0.1,<5',
     # grpcio 1.8.1 and above requires protobuf 3.5.0.post1.
     'protobuf>=3.5.0.post1,<4',
+    'python-snappy>=0.5.3,<1.0',
     'pytz>=2018.3,<=2018.4',
     'pyyaml>=3.12,<4.0.0',
     'pyvcf>=0.6.8,<0.7.0',