diff --git a/.circleci/config.yml b/.circleci/config.yml
index f37fe5950..f709ff0f0 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -8,7 +8,7 @@ executors:
 jobs:
   test:
     docker:
-    - image: circleci/ruby:2.5.3-stretch-node
+    - image: circleci/ruby:2.7.0-node
       environment:
         BUNDLE_JOBS: 3
         BUNDLE_RETRY: 3
diff --git a/Gemfile b/Gemfile
index d12a0c2f0..d98c0a4ab 100644
--- a/Gemfile
+++ b/Gemfile
@@ -25,6 +25,7 @@ end
 gem 'committee' # validates Open API spec (OAS)
 gem 'config'
 gem 'deprecation'
+gem 'dry-schema', '~> 1.4'
 gem 'faraday'
 gem 'honeybadger'
 gem 'jbuilder'
diff --git a/Gemfile.lock b/Gemfile.lock
index 80e171e68..b8249cb5a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -511,6 +511,7 @@ DEPENDENCIES
   dlss-capistrano
   dor-services (~> 8.0)
   dor-workflow-client (~> 3.14)
+  dry-schema (~> 1.4)
   equivalent-xml
   factory_bot_rails
   faraday