diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index da2994f..d2524b1 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -15,7 +15,7 @@ jobs:
 
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.0.3"
+          ruby-version: .ruby-version
           bundler-cache: true
 
       - name: Wait for MySQL to boot
diff --git a/.ruby-version b/.ruby-version
index 15a2799..fa7adc7 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.3.0
+3.3.5
diff --git a/Dockerfile b/Dockerfile
index c2b9dc8..b66b0e7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:3.3.0-alpine3.18
+FROM ruby:3.3.5-alpine3.20
 ARG KRANE_VERSION=3.0.1
 ARG KUBECTL_VERSION=1.26.3
 
@@ -12,6 +12,7 @@ RUN apk update && apk --update add \
 
 COPY Gemfile /app/
 COPY Gemfile.lock /app/
+COPY .ruby-version /app/
 
 RUN apk --update add \
   --virtual build-dependencies \
diff --git a/Gemfile b/Gemfile
index 14dcded..94052a9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,9 +1,15 @@
 source 'https://rubygems.org'
 
+ruby file: ".ruby-version"
+
 gem 'rails', '~> 7.0.8'
 gem 'mysql2'
 gem 'puma', '~> 6.4'
 gem 'bootsnap', '>= 1.4.2', require: false
+gem 'base64', '~> 0.2.0'
+gem 'bigdecimal', '~> 3.1'
+gem 'mutex_m', '~> 0.2.0'
+gem 'json', '~> 2.7'
 
 group :development do
   gem 'web-console', '>= 3.3.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index b7cdd37..f56348f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -78,6 +78,8 @@ GEM
       descendants_tracker (~> 0.0.4)
       ice_nine (~> 0.11.0)
       thread_safe (~> 0.3, >= 0.3.1)
+    base64 (0.2.0)
+    bigdecimal (3.1.8)
     bindex (0.8.1)
     bootsnap (1.18.4)
       msgpack (~> 1.2)
@@ -142,6 +144,7 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
+    json (2.7.2)
     jwt (2.7.1)
     listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
@@ -165,6 +168,7 @@ GEM
     msgpack (1.7.2)
     multi_xml (0.6.0)
     multipart-post (2.3.0)
+    mutex_m (0.2.0)
     mysql2 (0.5.6)
     net-imap (0.4.11)
       date
@@ -179,6 +183,14 @@ GEM
     nokogiri (1.16.7)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
+    nokogiri (1.16.7-aarch64-linux)
+      racc (~> 1.4)
+    nokogiri (1.16.7-arm64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.16.7-x86_64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.16.7-x86_64-linux)
+      racc (~> 1.4)
     oauth2 (2.0.9)
       faraday (>= 0.17.3, < 3.0)
       jwt (>= 1.0, < 3.0)
@@ -350,12 +362,22 @@ GEM
     zeitwerk (2.6.14)
 
 PLATFORMS
+  aarch64-linux
+  arm64-darwin
+  arm64-linux
   ruby
+  x86_64-darwin
+  x86_64-linux
+  x86_64-linux-musl
 
 DEPENDENCIES
+  base64 (~> 0.2.0)
+  bigdecimal (~> 3.1)
   bootsnap (>= 1.4.2)
   byebug
+  json (~> 2.7)
   listen (>= 3.0.5)
+  mutex_m (~> 0.2.0)
   mysql2
   puma (~> 6.4)
   rails (~> 7.0.8)
@@ -363,5 +385,8 @@ DEPENDENCIES
   sidekiq
   web-console (>= 3.3.0)
 
+RUBY VERSION
+   ruby 3.3.5p100
+
 BUNDLED WITH
-   2.5.5
+   2.5.21