diff --git a/Gemfile b/Gemfile
index 895f3c7..de3b402 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,6 +6,7 @@ gem 'sinatra-websocket'
 gem 'bunny'
 gem 'thin'
 gem 'ostruct', '~> 0.6.0' # warning: ostruct was loaded from the standard library, but will no longer be part of the default gems starting from Ruby 3.5.0
+gem 'logger', '~> 1.6', '>= 1.6.1' # warning: logger was loaded from the standard library, but will no longer be part of the default gems starting from Ruby 3.5.0
 
 group :development, :test do
   gem 'rspec'
diff --git a/Gemfile.lock b/Gemfile.lock
index cfb71dd..c62b434 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -34,6 +34,7 @@ GEM
     listen (3.8.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
+    logger (1.6.1)
     lumberjack (1.2.6)
     method_source (1.0.0)
     mustermann (3.0.0)
@@ -96,6 +97,7 @@ PLATFORMS
 DEPENDENCIES
   bunny
   guard-rspec
+  logger (~> 1.6, >= 1.6.1)
   ostruct (~> 0.6.0)
   rspec
   sinatra