diff --git a/Gemfile.lock b/Gemfile.lock
index 55d67f0..47493ba 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -82,7 +82,8 @@ GEM
       parallel (~> 1.3)
       typhoeus (~> 0.7)
       yell (~> 2.0)
-    httparty (0.15.6)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     i18n (0.8.6)
     jekyll (3.4.5)
@@ -170,6 +171,7 @@ GEM
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
+    mini_mime (1.1.2)
     mini_portile2 (2.8.0)
     minima (2.1.1)
       jekyll (~> 3.3)