diff --git a/Gemfile b/Gemfile
index f4ff3f2..9478f86 100644
--- a/Gemfile
+++ b/Gemfile
@@ -28,7 +28,7 @@ gem 'jquery-rails', '~> 4.3'
 gem 'bootstrap-sass', '~> 3.3'
 
 # Utilities
-gem 'httparty', '~> 0.15'
+gem 'httparty', '~> 0.21'
 gem 'phonelib', '~> 0.6'
 gem 'email_validator', '~> 1.6'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 518308f..f210f27 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -96,8 +96,8 @@ GEM
     ffi (1.15.5)
     globalid (1.0.0)
       activesupport (>= 5.0)
-    httparty (0.20.0)
-      mime-types (~> 3.0)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     i18n (1.12.0)
       concurrent-ruby (~> 1.0)
@@ -240,7 +240,7 @@ DEPENDENCIES
   byebug
   capybara (~> 2.13.0)
   email_validator (~> 1.6)
-  httparty (~> 0.15)
+  httparty (~> 0.21)
   jquery-rails (~> 4.3)
   listen
   pg (~> 1.0)