diff --git a/requirements_dev.txt b/requirements_dev.txt
index 66cd83a..8c61b62 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -22,7 +22,7 @@ deprecation==2.1.0
 grpcio-tools
 grpcio
 grpcio-reflection
-protobuf==3.19.4
+protobuf==3.19.5
 pyyaml
 six
 gcloud
diff --git a/setup.py b/setup.py
index ccc0e6e..97d55ce 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@
 with open('HISTORY.rst') as history_file:
     history = history_file.read()
 
-requirements = ['requests', 'python-dotenv', 'deprecation', 'protobuf~=4.21.10', 'grpcio', 'google-api-python-client', 'boto3']
+requirements = ['requests', 'python-dotenv', 'deprecation', 'protobuf>=4.21.10,<3.20.0', 'grpcio', 'google-api-python-client', 'boto3']
 
 # removed in 0.7.1 test_requirements = ['pytest']