rails_failover.gemspec in rails_failover-0.6.1 vs rails_failover.gemspec in rails_failover-0.6.2

@@ -22,6 +22,7 @@
   spec.require_paths = ["lib"]
 
   ["activerecord", "railties"].each do |gem_name|
     spec.add_dependency gem_name, "~> 6.0"
   end
+  spec.add_dependency "concurrent-ruby"
 end