diff --git a/Gemfile b/Gemfile
index 0e45c2a5..3e772043 100644
--- a/Gemfile
+++ b/Gemfile
@@ -90,6 +90,7 @@ group :development do
   gem 'rails-erd',                     '~> 1.5', '>= 1.5.2', require: false
   gem 'web-console',                   '>= 3.3.0'
   gem 'listen',                        '>= 3.0.5', '< 3.2'
+  gem 'rack-mini-profiler',            '~> 1.0'
   gem 'spring'
   gem 'spring-watcher-listen',         '~> 2.0.0'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 30939bd7..9c34312c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -282,6 +282,8 @@ GEM
     pundit (1.1.0)
       activesupport (>= 3.0.0)
     rack (2.0.5)
+    rack-mini-profiler (1.0.0)
+      rack (>= 1.2.0)
     rack-test (1.0.0)
       rack (>= 1.0, < 3)
     rails (5.1.6)
@@ -486,6 +488,7 @@ DEPENDENCIES
   pry-rails (~> 0.3.6)
   puma (~> 3.7)
   pundit (~> 1.1)
+  rack-mini-profiler (~> 1.0)
   rails (~> 5.1.3)
   rails-controller-testing (~> 1.0, >= 1.0.2)
   rails-erd (~> 1.5, >= 1.5.2)