diff --git a/Gemfile.lock b/Gemfile.lock
index 3db2a8e..d9430c1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -172,7 +172,8 @@ GEM
     headless (2.2.0)
     http-cookie (1.0.3)
       domain_name (~> 0.5)
-    httparty (0.15.6)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     i18n (0.8.6)
     inflecto (0.0.2)
@@ -183,6 +184,7 @@ GEM
     method_source (0.8.2)
     mime-types (2.99.3)
     mini_magick (4.3.6)
+    mini_mime (1.1.2)
     mini_portile2 (2.3.0)
     minitest (5.10.3)
     moneta (0.8.1)