diff --git a/config/environments/development.rb b/config/environments/development.rb
index 494ddd72556..ac9b02b08d5 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -47,4 +47,7 @@ Rails.application.configure do
   config.assets.quiet = true
 
   config.allow_concurrency = defined?(::Puma)
+
+  # BetterErrors live shell (REPL) on every stack frame
+  BetterErrors::Middleware.allow_ip!("127.0.0.1/0")
 end