diff --git a/Gemfile b/Gemfile
index 0b0c205..a49f34e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -16,6 +16,7 @@ group :development do
   gem 'i18n_generators', '2.1.1'
   gem 'better_errors'
   gem 'web-console', '~> 3.6'
+  gem 'binding_of_caller'
 end
 
 group :test do
diff --git a/Gemfile.lock b/Gemfile.lock
index 0fa044a..991a911 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -79,6 +79,8 @@ GEM
       erubis (>= 2.6.6)
       rack (>= 0.9.0)
     bindex (0.5.0)
+    binding_of_caller (0.8.0)
+      debug_inspector (>= 0.0.1)
     bootsnap (1.3.0)
       msgpack (~> 1.0)
     builder (3.2.3)
@@ -100,6 +102,7 @@ GEM
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
     crass (1.0.4)
+    debug_inspector (0.0.3)
     diff-lcs (1.3)
     dig_rb (1.0.1)
     docile (1.3.0)
@@ -317,6 +320,7 @@ PLATFORMS
 
 DEPENDENCIES
   better_errors
+  binding_of_caller
   capybara (~> 3.0.2)
   capybara-screenshot
   factory_bot_rails