diff --git a/spec/provider/gae_spec.rb b/spec/provider/gae_spec.rb
index <HASH>..<HASH> 100644
--- a/spec/provider/gae_spec.rb
+++ b/spec/provider/gae_spec.rb
@@ -8,7 +8,7 @@ describe DPL::Provider::GAE do
 
   describe '#push_app' do
     example 'with defaults' do
-      allow(provider.context).to receive(:shell).with("#{DPL::Provider::GAE::GCLOUD} --quiet --verbosity \"warning\" --project \"test\" app deploy \"app.yaml\" --version \"\" --promote").and_return(true)
+      allow(provider.context).to receive(:shell).with("#{DPL::Provider::GAE::GCLOUD} --quiet --verbosity \"warning\" --project \"test\" app deploy \"app.yaml\" --promote").and_return(true)
       provider.push_app
     end
   end
Modify the test case of gae for #<I>

If user didn't speicify the version,
we should use empty string instead of `--version=""`