From a4deaf7b1b5c4b7ce8f6dc5bb96d32ea8ff55c2d Mon Sep 17 00:00:00 2001
From: Anthonios Partheniou <partheniou@google.com>
Date: Thu, 2 Jun 2022 13:15:51 -0400
Subject: [PATCH] fix(deps): require protobuf <4.0.0dev (#595)

---
 setup.py                    | 3 ++-
 testing/constraints-3.6.txt | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/setup.py b/setup.py
index 2742ecc78..651d6f18f 100644
--- a/setup.py
+++ b/setup.py
@@ -38,7 +38,8 @@
     # https://github.com/googleapis/google-cloud-python/issues/10566
     "google-cloud-core >= 1.4.1, <3.0.0dev",
     "grpc-google-iam-v1 >= 0.12.4, <1.0.0dev",
-    "proto-plus >= 1.18.0",
+    "proto-plus >= 1.18.0, <2.0.0dev",
+    "protobuf >= 3.19.0, <4.0.0dev",
 ]
 extras = {"libcst": "libcst >= 0.2.5"}
 
diff --git a/testing/constraints-3.6.txt b/testing/constraints-3.6.txt
index 0f4a447db..455fa9b7b 100644
--- a/testing/constraints-3.6.txt
+++ b/testing/constraints-3.6.txt
@@ -10,3 +10,4 @@ google-cloud-core==1.4.1
 grpc-google-iam-v1==0.12.4
 proto-plus==1.18.0
 libcst==0.2.5
+protobuf==3.19.0