diff --git a/decrypto/solution/Gemfile.lock b/decrypto/solution/Gemfile.lock
index 58513a2..52e970e 100644
--- a/decrypto/solution/Gemfile.lock
+++ b/decrypto/solution/Gemfile.lock
@@ -1,12 +1,10 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    httparty (0.16.3)
-      mime-types (~> 3.0)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
-    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)
     singlogger (0.0.1)