diff --git a/CHANGELOG.md b/CHANGELOG.md
index d661f92..45a33c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Unreleased
 
+# 0.16.6
+
+- Fix poller rake task for Rails 8.0
+
 # 0.16.5
 
 - Rails 8.0 support
diff --git a/lib/tasks/telegram-bot.rake b/lib/tasks/telegram-bot.rake
index 04422d6..f8d7bce 100644
--- a/lib/tasks/telegram-bot.rake
+++ b/lib/tasks/telegram-bot.rake
@@ -15,6 +15,9 @@ namespace :telegram do
           Rails.logger.extend ActiveSupport::Logger.broadcast console
         end
       end
+      # Routes are not loaded by default in Rails >= 8.0.
+      # Load them explicitly to identify a controller for a bot.
+      Rails.application.try(:reload_routes_unless_loaded)
       Telegram::Bot::UpdatesPoller.start(ENV['BOT']&.to_sym || :default)
     end
 
diff --git a/lib/telegram/bot/version.rb b/lib/telegram/bot/version.rb
index 3504eb4..098e6fe 100644
--- a/lib/telegram/bot/version.rb
+++ b/lib/telegram/bot/version.rb
@@ -2,7 +2,7 @@
 
 module Telegram
   module Bot
-    VERSION = '0.16.5'
+    VERSION = '0.16.6'
 
     def self.gem_version
       Gem::Version.new VERSION