diff --git a/config/environments/development.rb b/config/environments/development.rb
index 63168eb28..acf67286d 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -42,4 +42,6 @@ Rails.application.configure do
 
   # Raises error for missing translations
   # config.action_view.raise_on_missing_translations = true
+
+  config.cache_store = :null_store
 end
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 76ec52249..e84606f73 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -55,7 +55,7 @@ Rails.application.configure do
   # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
 
   # Use a different cache store in production.
-  # config.cache_store = :mem_cache_store
+  config.cache_store = :null_store
 
   # Enable serving of images, stylesheets, and JavaScripts from an asset server.
   # config.action_controller.asset_host = 'http://assets.example.com'
diff --git a/config/environments/staging.rb b/config/environments/staging.rb
index 76ec52249..e84606f73 100644
--- a/config/environments/staging.rb
+++ b/config/environments/staging.rb
@@ -55,7 +55,7 @@ Rails.application.configure do
   # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
 
   # Use a different cache store in production.
-  # config.cache_store = :mem_cache_store
+  config.cache_store = :null_store
 
   # Enable serving of images, stylesheets, and JavaScripts from an asset server.
   # config.action_controller.asset_host = 'http://assets.example.com'
diff --git a/config/environments/test.rb b/config/environments/test.rb
index 34034499f..a76376fe6 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -43,4 +43,6 @@ Rails.application.configure do
 
   # Raises error for missing translations
   # config.action_view.raise_on_missing_translations = true
+
+  config.cache_store = :null_store
 end
diff --git a/spec/features/comments_spec.rb b/spec/features/comments_spec.rb
index 10a919a07..ce5403a56 100644
--- a/spec/features/comments_spec.rb
+++ b/spec/features/comments_spec.rb
@@ -168,4 +168,4 @@ feature 'Comments' do
     expect(InappropiateFlag.flagged?(user, comment)).to_not be
   end
 
-end
+end
\ No newline at end of file