diff --git a/Gemfile b/Gemfile
index afee822..3ab4d6e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem 'bootsnap', '>= 1.4.2', require: false
 gem 'base64', '~> 0.2.0'
 gem 'bigdecimal', '~> 3.1'
 gem 'mutex_m', '~> 0.2.0'
-gem 'json', '~> 2.7'
+gem 'json', '~> 2.8'
 
 group :development do
   gem 'web-console', '>= 3.3.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 5c6cd2e..8cb078f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -162,7 +162,7 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (2.7.6)
+    json (2.8.1)
     jwt (2.7.1)
     listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
@@ -406,7 +406,7 @@ DEPENDENCIES
   bigdecimal (~> 3.1)
   bootsnap (>= 1.4.2)
   byebug
-  json (~> 2.7)
+  json (~> 2.8)
   listen (>= 3.0.5)
   mutex_m (~> 0.2.0)
   mysql2