diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 47c5865..926bb8f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
             database-password: 'root'
             database-port: '3306'
             docker-compose-file: 'docker-compose.ci.mysql.yml'
-          - ruby-version: 'jruby-9.4.2.0'
+          - ruby-version: 'jruby-9.4.15.0'
             database-adapter: 'mysql2'
             database-user: 'root'
             database-password: 'root'
@@ -37,7 +37,7 @@ jobs:
             database-password: 'postgres'
             database-port: '5432'
             docker-compose-file: 'docker-compose.ci.postgresql.yml'
-          - ruby-version: 'jruby-9.4.2.0'
+          - ruby-version: 'jruby-9.4.15.0'
             database-adapter: 'postgresql'
             database-user: 'postgres'
             database-password: 'postgres'
diff --git a/Gemfile b/Gemfile
index a3ba63f..5ae3be3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,6 +7,9 @@ source 'https://rubygems.org'
 # development dependencies will be added by default to the :development group.
 gemspec
 
+# Lock i18n to 1.14.x for: https://github.com/ruby-i18n/i18n/issues/735
+gem 'i18n', '~> 1.14.0'
+
 # Lock minitest to 5.x until Rails 7.1+ adds Minitest 6.0 support
 # Minitest 6.0.0 was released Dec 2024 with breaking API changes
 gem 'minitest', '~> 5.0'
diff --git a/deposit.gemspec b/deposit.gemspec
index cfdcc0f..fad6f12 100644
--- a/deposit.gemspec
+++ b/deposit.gemspec
@@ -23,5 +23,6 @@ Gem::Specification.new do |s|
   s.add_dependency 'killbill-assets-ui'
   s.add_dependency 'killbill-client'
   s.add_dependency 'money-rails', '~> 1.9'
-  s.add_dependency 'rails', '~> 7.0'
+  s.required_ruby_version = '>= 3.1.0'
+  s.add_dependency 'rails', '~> 7.2'
 end