added support tvos
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index ff4d794..284c8fb 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -40,6 +40,7 @@
 
   s.ios.deployment_target = '7.0'
   s.osx.deployment_target = '10.9'
+  s.tvos.deployment_target = '10.0'
   s.requires_arc = false
 
   name = 'grpc'