diff --git a/Gemfile.lock b/Gemfile.lock
index a17ae9d..fbf7cb5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -152,8 +152,8 @@ GEM
       guard (~> 2.0)
       rubocop (~> 0.20)
     highline (2.0.0)
-    httparty (0.16.3)
-      mime-types (~> 3.0)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     i18n (1.8.2)
       concurrent-ruby (~> 1.0)
@@ -203,9 +203,6 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
-    mime-types (3.2.2)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2018.0812)
     mimemagic (0.3.10)
       nokogiri (~> 1)
       rake