diff --git a/Gemfile b/Gemfile
index be8397e..d0c18e2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 
 gem 'sinatra', '~> 3.2'
-gem 'json', '~> 2.7'
+gem 'json', '~> 2.21'
 gem 'jsonapi-serializers'
 gem 'rack', '~> 2.2'
 gem 'rack-contrib'
diff --git a/Gemfile.lock b/Gemfile.lock
index 46d5408..6f395f0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -45,7 +45,7 @@ GEM
       concurrent-ruby (~> 1.0)
     io-console (0.8.2)
     jmespath (1.6.2)
-    json (2.20.0)
+    json (2.21.2)
     jsonapi-serializers (1.0.1)
       activesupport
     logger (1.7.0)
@@ -106,7 +106,7 @@ DEPENDENCIES
   aws-record
   aws-sdk-dynamodb (~> 1)
   dotenv
-  json (~> 2.7)
+  json (~> 2.21)
   jsonapi-serializers
   pry
   rack (~> 2.2)
@@ -140,7 +140,7 @@ CHECKSUMS
   i18n (1.15.2) sha256=00f9eb62412fe593b2a65a97daa75300d37abb8f7202ec748e94b6d46a9dd1b5
   io-console (0.8.2) sha256=d6e3ae7a7cc7574f4b8893b4fca2162e57a825b223a177b7afa236c5ef9814cc
   jmespath (1.6.2) sha256=238d774a58723d6c090494c8879b5e9918c19485f7e840f2c1c7532cf84ebcb1
-  json (2.20.0) sha256=9362bc6e55a952b056abf9167cf053358181c904cb70cd6eee0808ea830fc32b
+  json (2.21.2) sha256=1f1d3b7cf2b3ba1a69beca0bb6db13d5438b80bff3cd54cdaaa620b9b07c1c6a
   jsonapi-serializers (1.0.1) sha256=79482669d084ba38635cbfa56a216b5f6ae40027db90ebc5ae224a6cf12a2fd4
   logger (1.7.0) sha256=196edec7cc44b66cfb40f9755ce11b392f21f7967696af15d274dde7edff0203
   method_source (1.1.0) sha256=181301c9c45b731b4769bc81e8860e72f9161ad7d66dd99103c9ab84f560f5c5