diff --git a/Gemfile.lock b/Gemfile.lock
index b354dc3..a01d1b7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -188,7 +188,7 @@ GEM
       ntlm-http (~> 0.1, >= 0.1.1)
       webrobots (>= 0.0.9, < 0.2)
     metaclass (0.0.4)
-    mime-types (2.4.3)
+    mime-types (2.5)
     mini_portile (0.6.2)
     minitest (5.6.1)
     mocha (1.1.0)
--
libgit2 0.21.2