diff --git a/changelogs/unreleased/rails5-fix-47804.yml b/changelogs/unreleased/rails5-fix-47804.yml
new file mode 100644
index 0000000000000000000000000000000000000000..3332ed3bbaa65c6563e20171cce6e21ce1d1d778
--- /dev/null
+++ b/changelogs/unreleased/rails5-fix-47804.yml
@@ -0,0 +1,5 @@
+---
+title: Rails5 fix stack level too deep
+merge_request: 19762
+author: Jasper Maes
+type: fixed
diff --git a/spec/controllers/application_controller_spec.rb b/spec/controllers/application_controller_spec.rb
index 773bf25ed441bee5fe34ef3a57665fdb7a7fa4da..b35b220b440507e6870bde51643ce55d1894293d 100644
--- a/spec/controllers/application_controller_spec.rb
+++ b/spec/controllers/application_controller_spec.rb
@@ -502,7 +502,7 @@ describe ApplicationController do
 
     context '422 errors' do
       it 'logs a response with a string' do
-        response = spy(ActionDispatch::Response, status: 422, body: 'Hello world', content_type: 'application/json')
+        response = spy(ActionDispatch::Response, status: 422, body: 'Hello world', content_type: 'application/json', cookies: {})
         allow(controller).to receive(:response).and_return(response)
         get :index
 
@@ -511,7 +511,7 @@ describe ApplicationController do
 
       it 'logs a response with an array' do
         body = ['I want', 'my hat back']
-        response = spy(ActionDispatch::Response, status: 422, body: body, content_type: 'application/json')
+        response = spy(ActionDispatch::Response, status: 422, body: body, content_type: 'application/json', cookies: {})
         allow(controller).to receive(:response).and_return(response)
         get :index
 
@@ -519,7 +519,7 @@ describe ApplicationController do
       end
 
       it 'does not log a string with an empty body' do
-        response = spy(ActionDispatch::Response, status: 422, body: nil, content_type: 'application/json')
+        response = spy(ActionDispatch::Response, status: 422, body: nil, content_type: 'application/json', cookies: {})
         allow(controller).to receive(:response).and_return(response)
         get :index
 
@@ -527,7 +527,7 @@ describe ApplicationController do
       end
 
       it 'does not log an HTML body' do
-        response = spy(ActionDispatch::Response, status: 422, body: 'This is a test', content_type: 'application/html')
+        response = spy(ActionDispatch::Response, status: 422, body: 'This is a test', content_type: 'application/html', cookies: {})
         allow(controller).to receive(:response).and_return(response)
         get :index