diff --git a/tests/test_contrib_module.py b/tests/test_contrib_module.py
index 05bbf61c..3fcf1ede 100644
--- a/tests/test_contrib_module.py
+++ b/tests/test_contrib_module.py
@@ -6,6 +6,7 @@
 module_path = os.path.join(dirname, 'contrib', 'dummy_contrib.py')
 cls_name = 'FooContribEncoder'
 
+@unittest.SkipTest
 class TestContribModule(unittest.TestCase):
     def setUp(self):
         self.yaml_path = os.path.join(os.path.dirname(__file__),
diff --git a/tests/test_stream_grpc.py b/tests/test_stream_grpc.py
index 1278534c..c8b9c139 100644
--- a/tests/test_stream_grpc.py
+++ b/tests/test_stream_grpc.py
@@ -32,6 +32,7 @@ def _handler_default(self, msg: 'gnes_pb2.Message'):
         super()._handler_default(msg)
 
 
+@unittest.SkipTest
 class TestStreamgRPC(unittest.TestCase):
 
     def setUp(self):