diff --git a/Gemfile b/Gemfile
index afae26db..3fa33ff0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -240,6 +240,7 @@ group :development do
   gem 'web-console'
   # as development database
   gem 'sqlite3'
+  gem 'annotate'
 end
 
 group :test do
diff --git a/Gemfile.lock b/Gemfile.lock
index 9fce2848..fb64fb9b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -70,6 +70,9 @@ GEM
     afm (0.2.2)
     ajax-datatables-rails (0.4.3)
       railties (>= 4.0)
+    annotate (3.1.1)
+      activerecord (>= 3.2, < 7.0)
+      rake (>= 10.4, < 14.0)
     archive-zip (0.12.0)
       io-like (~> 0.3.0)
     arel (9.0.0)
@@ -624,6 +627,7 @@ DEPENDENCIES
   acts_as_commentable_with_threading
   acts_as_list
   ajax-datatables-rails
+  annotate
   autoprefixer-rails
   awesome_nested_set
   axlsx!
diff --git a/config/initializers/sentry.rb b/config/initializers/sentry.rb
index 1daf0745..e42fcce6 100644
--- a/config/initializers/sentry.rb
+++ b/config/initializers/sentry.rb
@@ -1,4 +1,4 @@
 Sentry.init do |config|
-  config.allowed_environments = %|production staging|
+  config.enabled_environments = %|production staging|
   config.dsn = ENV['SENTRY_DSN']
 end