diff --git a/Gemfile b/Gemfile
index b00d0d59b..177f84245 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,6 +9,7 @@ gem 'cocoapods', '1.8.4'
 #guard against rubyzip vulnerability
 gem "rubyzip", ">= 1.3.0"
 gem "excon", ">= 0.71.0"
+gem "json", ">= 2.3.0"
 
 plugins_path = File.join(File.dirname(__FILE__), 'fastlane', 'Pluginfile')
 eval_gemfile(plugins_path) if File.exist?(plugins_path)
diff --git a/Gemfile.lock b/Gemfile.lock
index 54bac07dc..daf977f87 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -142,7 +142,7 @@ GEM
     httpclient (2.8.3)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    json (2.2.0)
+    json (2.3.1)
     jwt (2.1.0)
     memoist (0.16.0)
     mime-types (3.2.2)
@@ -213,6 +213,7 @@ DEPENDENCIES
   cocoapods (= 1.8.4)
   excon (>= 0.71.0)
   fastlane
+  json (>= 2.3.0)
   rubyzip (>= 1.3.0)
 
 BUNDLED WITH