diff --git a/app/models/messenger.rb b/app/models/messenger.rb
index 83b8c6a..38404ee 100644
--- a/app/models/messenger.rb
+++ b/app/models/messenger.rb
@@ -47,21 +47,8 @@ class Messenger
       end
 
       channels.each do |channel|
-        uri = URI url
         params[:channel] = channel
-        http_options = { use_ssl: uri.scheme == 'https' }
-        http_options[:verify_mode] = OpenSSL::SSL::VERIFY_NONE unless RedmineMessenger.setting? :messenger_verify_ssl
-        begin
-          req = Net::HTTP::Post.new uri
-          req.set_form_data payload: params.to_json
-          Net::HTTP.start uri.hostname, uri.port, http_options do |http|
-            response = http.request req
-            Rails.logger.warn response.inspect unless [Net::HTTPSuccess, Net::HTTPRedirection, Net::HTTPOK].include? response
-          end
-        rescue StandardError => e
-          Rails.logger.warn "cannot connect to #{url}"
-          Rails.logger.warn e
-        end
+        DeliverMessageJob.perform_later url, params
       end
     end
 
@@ -304,4 +291,26 @@ class Messenger
       []
     end
   end
+
+  class DeliverMessageJob < ActiveJob::Base
+    queue_as :default
+
+    def perform(url, params)
+      uri = URI url
+      params[:channel] = channel
+      http_options = { use_ssl: uri.scheme == 'https' }
+      http_options[:verify_mode] = OpenSSL::SSL::VERIFY_NONE unless RedmineMessenger.setting? :messenger_verify_ssl
+      begin
+        req = Net::HTTP::Post.new uri
+        req.set_form_data payload: params.to_json
+        Net::HTTP.start uri.hostname, uri.port, http_options do |http|
+          response = http.request req
+          Rails.logger.warn response.inspect unless [Net::HTTPSuccess, Net::HTTPRedirection, Net::HTTPOK].include? response
+        end
+      rescue StandardError => e
+        Rails.logger.warn "cannot connect to #{url}"
+        Rails.logger.warn e
+      end
+    end
+  end
 end