diff --git a/Gemfile.lock b/Gemfile.lock
index 183f2bb..dbfd9a5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -76,7 +76,8 @@ GEM
     haml (5.0.2)
       temple (>= 0.8.0)
       tilt
-    httparty (0.15.6)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
@@ -115,6 +116,7 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
+    mini_mime (1.1.2)
     mini_portile2 (2.4.0)
     minitest (5.13.0)
     multi_json (1.12.1)