diff --git a/.rubocop.yml b/.rubocop.yml
index bcc1f80..d4b6c86 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -7,7 +7,7 @@ inherit_gem:
   rubocop-rails-omakase: rubocop.yml
 
 AllCops:
-  TargetRubyVersion: 3.4.2
+  TargetRubyVersion: 3.3.9
   TargetRailsVersion: 7.2.2
   DisabledByDefault: true
   Exclude:
diff --git a/.ruby-version b/.ruby-version
index 4f5e697..3b47f2e 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.4.5
+3.3.9
diff --git a/development.Dockerfile b/development.Dockerfile
index 9bdd817..426cec6 100644
--- a/development.Dockerfile
+++ b/development.Dockerfile
@@ -1,7 +1,7 @@
 # syntax = docker/dockerfile:1
 
 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
-ARG RUBY_VERSION=3.4.2
+ARG RUBY_VERSION=3.3.9
 FROM docker.io/library/ruby:$RUBY_VERSION-slim as base
 
 # OS Level Dependencies