diff --git a/Gemfile b/Gemfile
index 5c04256..ec51a09 100644
--- a/Gemfile
+++ b/Gemfile
@@ -90,4 +90,4 @@ end
 gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
 
 gem 'aasm', '~> 4.12.3'
-gem 'httparty', '~> 0.15.1'
\ No newline at end of file
+gem 'httparty', '~> 0.21.0'
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
index b74947f..eabacbe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -217,7 +217,8 @@ GEM
       nokogiri (>= 1.6.0)
       ruby_parser (~> 3.5)
     http_parser.rb (0.6.0)
-    httparty (0.15.7)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     i18n (1.8.10)
       concurrent-ruby (~> 1.0)
@@ -440,7 +441,7 @@ DEPENDENCIES
   foreman!
   groupdate
   haml-rails (~> 1.0)
-  httparty (~> 0.15.1)
+  httparty (~> 0.21.0)
   jbuilder (~> 2.5)
   jquery-rails
   kraken_client!