diff --git a/Gemfile b/Gemfile
index 7542fb0..6bf9949 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,5 @@
 source "https://rubygems.org"
 
 gemspec
-gem "mime-types", "< 3.0", platforms: [:ruby_19, :jruby_19]
\ No newline at end of file
+gem "mime-types", "< 3.0", platforms: [:ruby_19, :jruby_19]
+gem "json", "< 2.0", :platforms=>[:ruby_19, :jruby_19]
diff --git a/gemfiles/2.6.gemfile b/gemfiles/2.6.gemfile
index 3bb4776..fbd8399 100644
--- a/gemfiles/2.6.gemfile
+++ b/gemfiles/2.6.gemfile
@@ -3,6 +3,8 @@
 source "https://rubygems.org"
 
 gem "mime-types", "< 3.0", :platforms=>[:ruby_19, :jruby_19]
+gem "json", "< 2.0", :platforms=>[:ruby_19, :jruby_19]
+
 gem "capybara", "~> 2.6.0"
 
 gemspec :path=>"../"
\ No newline at end of file
diff --git a/gemfiles/2.7.gemfile b/gemfiles/2.7.gemfile
index c7f7848..19fbf8e 100644
--- a/gemfiles/2.7.gemfile
+++ b/gemfiles/2.7.gemfile
@@ -3,6 +3,8 @@
 source "https://rubygems.org"
 
 gem "mime-types", "< 3.0", :platforms=>[:ruby_19, :jruby_19]
+gem "json", "< 2.0", :platforms=>[:ruby_19, :jruby_19]
+
 gem "capybara", "~> 2.7.0"
 
 gemspec :path=>"../"
\ No newline at end of file
diff --git a/gemfiles/master.gemfile b/gemfiles/master.gemfile
index 43e8d55..4765268 100644
--- a/gemfiles/master.gemfile
+++ b/gemfiles/master.gemfile
@@ -3,6 +3,8 @@
 source "https://rubygems.org"
 
 gem "mime-types", "< 3.0", :platforms=>[:ruby_19, :jruby_19]
+gem "json", "< 2.0", :platforms=>[:ruby_19, :jruby_19]
+
 gem "capybara", :github=>"jnicklas/capybara"
 
 gemspec :path=>"../"
\ No newline at end of file