diff --git a/Gemfile b/Gemfile
index 39e50360..395fa377 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ ruby '2.7.6'
 gem 'mitc_service', path: 'components/mitc_service'
 
 gem 'aca_entities',  git:  'https://github.com/ideacrew/aca_entities.git', branch: 'trunk'
-gem 'event_source',  git:  'https://github.com/ideacrew/event_source.git', branch: 'trunk'
+gem 'event_source',  git:  'https://github.com/ideacrew/event_source.git', branch: 'wait_for_rails_start'
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails', branch: 'main'
 gem 'rails', '~> 6.1.3'
diff --git a/Gemfile.lock b/Gemfile.lock
index 70836090..0ef05c60 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -18,10 +18,10 @@ GIT
 
 GIT
   remote: https://github.com/ideacrew/event_source.git
-  revision: 29393ebb04df8f57ccb536da4635087c8c8bde0b
-  branch: trunk
+  revision: 3a159e0ace4889bb9652752cd62fade1d153275f
+  branch: wait_for_rails_start
   specs:
-    event_source (0.5.5)
+    event_source (0.5.8)
       bunny (>= 2.14)
       deep_merge (~> 1.2.0)
       dry-events (~> 0.3)
diff --git a/app/event_source/subscribers/mitc_response_subscriber.rb b/app/event_source/subscribers/mitc_response_subscriber.rb
index 00e607df..5f4bf2b7 100644
--- a/app/event_source/subscribers/mitc_response_subscriber.rb
+++ b/app/event_source/subscribers/mitc_response_subscriber.rb
@@ -13,6 +13,12 @@ class MitcResponseSubscriber
     #
     # @return [success/failure message]
     subscribe(:on_determinations_eval) do |body, status, headers|
+      @subscriber_logger = Logger.new(
+        File.join(Rails.root, 'log', "mitc_response_subscriber_#{Date.today.strftime('%Y_%m_%d')}.log")
+      )
+      @subscriber_logger.info '-' * 100
+      @subscriber_logger.info "MitcResponseSubscriber#on_determinations_eval body: #{body}, status: #{status}, headers: #{headers}"
+
       logger.info "MitcResponseSubscriber#on_determinations_eval body: #{body}, status: #{status}, headers: #{headers}"
       correlation_id = headers["CorrelationID"]
       persist(body, correlation_id)
@@ -22,8 +28,12 @@ def self.persist(response, correlation_id)
       logger.info "MitcResponseSubscriber response: #{response}, response_class: #{response.class}"
       params = { medicaid_application_id: correlation_id, medicaid_response_payload: response }
 
+      @subscriber_logger.info "MitcResponseSubscriber#persist params: #{params}"
+
       result = Eligibilities::DetermineFullEligibility.new.call(params.deep_symbolize_keys!)
 
+      @subscriber_logger.info "MitcResponseSubscriber#persist result: #{result.inspect}"
+
       message = if result.success?
                   result.success
                 else
diff --git a/components/mitc_service/Gemfile b/components/mitc_service/Gemfile
index b979c331..2e9afa21 100644
--- a/components/mitc_service/Gemfile
+++ b/components/mitc_service/Gemfile
@@ -10,7 +10,7 @@ gemspec
 # gem 'byebug', group: [:development, :test]
 
 gem 'aca_entities', git:  'https://github.com/ideacrew/aca_entities.git', branch: 'trunk'
-gem 'event_source',  git:  'https://github.com/ideacrew/event_source.git', branch: 'trunk'
+gem 'event_source',  git:  'https://github.com/ideacrew/event_source.git', branch: 'wait_for_rails_start'
 
 group :development, :test do
   gem "rspec-rails"
diff --git a/components/mitc_service/Gemfile.lock b/components/mitc_service/Gemfile.lock
index 86fe092a..c52a99ec 100644
--- a/components/mitc_service/Gemfile.lock
+++ b/components/mitc_service/Gemfile.lock
@@ -17,10 +17,10 @@ GIT
 
 GIT
   remote: https://github.com/ideacrew/event_source.git
-  revision: 29393ebb04df8f57ccb536da4635087c8c8bde0b
-  branch: trunk
+  revision: 3a159e0ace4889bb9652752cd62fade1d153275f
+  branch: wait_for_rails_start
   specs:
-    event_source (0.5.5)
+    event_source (0.5.8)
       bunny (>= 2.14)
       deep_merge (~> 1.2.0)
       dry-events (~> 0.3)
diff --git a/components/mitc_service/spec/dummy/config/initializers/event_source.rb b/components/mitc_service/spec/dummy/config/initializers/event_source.rb
new file mode 100644
index 00000000..a2c4ee7d
--- /dev/null
+++ b/components/mitc_service/spec/dummy/config/initializers/event_source.rb
@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+EventSource.configure do |config|
+  config.protocols = %w[amqp http]
+end
diff --git a/config/initializers/event_source.rb b/config/initializers/event_source.rb
index f4c32167..707aeafb 100644
--- a/config/initializers/event_source.rb
+++ b/config/initializers/event_source.rb
@@ -65,4 +65,4 @@
     end
 end
 
-EventSource.initialize!
\ No newline at end of file
+# EventSource.initialize!