diff --git a/.tool-versions b/.tool-versions
index 71a24443..8393d8db 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,2 +1,2 @@
-ruby 3.0.2
+ruby 3.1.6
 nodejs 18.15.0
diff --git a/Gemfile b/Gemfile
index b1746ae9..a8b19ada 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@
 
 source "https://rubygems.org"
 
-ruby "3.0.2"
+ruby "3.1.6"
 
 gem "rails", "6.1.7.7"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 55e8d28e..bd1a84c1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -625,7 +625,7 @@ DEPENDENCIES
   yarjuf
 
 RUBY VERSION
-   ruby 3.0.2p107
+   ruby 3.1.6p260
 
 BUNDLED WITH
    2.2.26
diff --git a/config/application.rb b/config/application.rb
index 1b0973f2..155d4d1f 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -4,6 +4,7 @@
 
 require "rails/all"
 require_relative "../lib/jwt_middleware"
+require "ostruct"
 
 # Require the gems listed in Gemfile, including any gems
 # you've limited to :test, :development, or :production.