1 files changed, 1 insertions, 1 deletions
diff --git a/setup.py b/setup.py
index d98c69c..cade3d8 100644
--- a/setup.py
+++ b/setup.py
@@ -37,7 +37,7 @@ dependencies = [
     'futures >= 3.2.0; python_version < "3.2"',
 ]
 extras = {
-    "grpc": "grpcio >= 1.29.0, < 2.0dev",
+    "grpc": "grpcio >= 1.33.2, < 2.0dev",
     "grpcgcp": "grpcio-gcp >= 0.2.2",
     "grpcio-gcp": "grpcio-gcp >= 0.2.2",
 }