diff --git a/Gemfile.lock b/Gemfile.lock
index 9a7a436..bee4354 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,12 +5,10 @@ GEM
     haml (5.1.2)
       temple (>= 0.8.0)
       tilt
-    httparty (0.17.1)
-      mime-types (~> 3.0)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
-    mime-types (3.3)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2019.1009)
+    mini_mime (1.1.2)
     multi_json (1.14.1)
     multi_xml (0.6.0)
     mustermann (1.0.3)