diff --git a/Gemfile.lock b/Gemfile.lock
index 56a9e20..7b7b8ba 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,13 +2,11 @@ GEM
   remote: https://rubygems.org/
   specs:
     dotenv (2.6.0)
-    httparty (0.16.3)
-      mime-types (~> 3.0)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     json (2.1.0)
-    mime-types (3.2.2)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2018.0812)
+    mini_mime (1.1.2)
     multi_xml (0.6.0)
     mustermann (1.0.3)
     rack (2.0.6)