diff --git a/setup.py b/setup.py
index 6b4061e..920df97 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
 
 setup(
     name="nameko-grpc",
-    version="1.2.0rc4",
+    version="1.3.0",
     description="Nameko gRPC extensions",
     long_description=readme,
     long_description_content_type="text/markdown",
@@ -34,6 +34,7 @@
             "coverage",
             "pytest",
             "pytest-timeout",
+            "grpcio<1.50",
             "grpcio-tools",
             "grpcio-status",
             "googleapis-common-protos",