diff --git a/Gemfile.lock b/Gemfile.lock
index 76f2bef..9965629 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -82,7 +82,7 @@ GEM
     mail (2.5.4)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
-    mime-types (1.23)
+    mime-types (1.24)
     mini_portile (0.5.1)
     multi_json (1.7.8)
     nested_form (0.3.2)