diff --git a/Gemfile b/Gemfile
index c6fd96486..4a7d81be4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -114,7 +114,7 @@ group :test do
   gem 'haikunator'
   gem 'shoulda-matchers', '~> 6.4'
 
-  gem 'json-schema', '~> 5.0.1'
+  gem 'json-schema', '~> 5.1.1'
   gem 'launchy'
   gem 'minitest-retry', require: false
   gem 'rdf-isomorphic', '~> 3.3.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index ea3faaf90..fb186a33b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -303,8 +303,9 @@ GEM
     jsbundling-rails (1.3.1)
       railties (>= 6.0.0)
     json (2.7.6)
-    json-schema (5.0.1)
+    json-schema (5.1.1)
       addressable (~> 2.8)
+      bigdecimal (~> 3.1)
     jwt (2.7.1)
     kaminari (1.2.2)
       activesupport (>= 4.1.0)
@@ -660,7 +661,7 @@ DEPENDENCIES
   image_processing
   jbuilder
   jsbundling-rails
-  json-schema (~> 5.0.1)
+  json-schema (~> 5.1.1)
   kaminari
   launchy
   minitest-retry