diff --git a/Gemfile b/Gemfile
index 8515a41c..614a2e95 100644
--- a/Gemfile
+++ b/Gemfile
@@ -21,6 +21,7 @@ gem 'importmap-rails'
 gem 'kaminari'
 gem 'lograge'
 gem 'oj'
+gem 'parallel'
 gem 'pg'
 gem 'prometheus_exporter'
 gem 'activerecord-postgis-adapter'
diff --git a/Gemfile.lock b/Gemfile.lock
index 62c7dfaa..640e815e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -540,6 +540,7 @@ DEPENDENCIES
   kaminari
   lograge
   oj
+  parallel
   pg
   prometheus_exporter
   pry-byebug