diff --git a/config/puma.rb b/config/puma.rb
index 1e19380..4a246a8 100644
--- a/config/puma.rb
+++ b/config/puma.rb
@@ -7,9 +7,8 @@
 threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
 threads threads_count, threads_count
 
-# Specifies the `port` that Puma will listen on to receive requests; default is 3000.
-#
-port        ENV.fetch("PORT") { 3000 }
+# Specifies the socket Puma will listen on, can be tcp:// or unix://, defaults to localhost:3000
+bind ENV.fetch("BIND") { "tcp://[::1]:#{ ENV.fetch('PORT', 3000) }" }
 
 # Specifies the `environment` that Puma will run in.
 #