diff --git a/app/grpc/ping_handler.rb b/app/grpc/ping_handler.rb
index 796b9120..d8453860 100644
--- a/app/grpc/ping_handler.rb
+++ b/app/grpc/ping_handler.rb
@@ -1,9 +1,9 @@
 # frozen_string_literal: true
 
-class PingHandler < Tucana::Internal::PingService::Service
+class PingHandler < Tucana::Sagittarius::PingService::Service
   include GrpcHandler
 
   def ping(request, _call)
-    Tucana::Internal::PingMessage.new(ping_id: request.ping_id)
+    Tucana::Sagittarius::PingMessage.new(ping_id: request.ping_id)
   end
 end
diff --git a/config/initializers/tucana.rb b/config/initializers/tucana.rb
index 8d8e7ade..d545a05d 100644
--- a/config/initializers/tucana.rb
+++ b/config/initializers/tucana.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 Rails.application.config.to_prepare do
-  Tucana.load_protocol(:internal)
+  Tucana.load_protocol(:sagittarius)
 end
diff --git a/spec/grpc/ping_handler_spec.rb b/spec/grpc/ping_handler_spec.rb
index 03573504..1feb85d8 100644
--- a/spec/grpc/ping_handler_spec.rb
+++ b/spec/grpc/ping_handler_spec.rb
@@ -6,7 +6,7 @@
   subject(:handler) { described_class.new }
 
   describe '.ping' do
-    let(:message) { Tucana::Internal::PingMessage.new(ping_id: 1) }
+    let(:message) { Tucana::Sagittarius::PingMessage.new(ping_id: 1) }
 
     it 'returns message with same id' do
       expect(handler.ping(message, nil).ping_id).to eq(message.ping_id)
diff --git a/spec/requests/grpc/internal/ping_service_spec.rb b/spec/requests/grpc/internal/ping_service_spec.rb
index 33b5e499..2dc5f522 100644
--- a/spec/requests/grpc/internal/ping_service_spec.rb
+++ b/spec/requests/grpc/internal/ping_service_spec.rb
@@ -1,13 +1,13 @@
 # frozen_string_literal: true
 
-RSpec.describe 'internal.PingService', :need_grpc_server do
+RSpec.describe 'sagittarius.PingService', :need_grpc_server do
   include GrpcHelpers
 
-  let(:stub) { create_stub Tucana::Internal::PingService }
+  let(:stub) { create_stub Tucana::Sagittarius::PingService }
 
   describe 'Ping' do
     it 'returns the same ping id' do
-      message = Tucana::Internal::PingMessage.new(ping_id: 42)
+      message = Tucana::Sagittarius::PingMessage.new(ping_id: 42)
       expect(stub.ping(message, authorization).ping_id).to eq(message.ping_id)
     end
   end