diff --git a/Gemfile.lock b/Gemfile.lock
index 4e85da4..f5f9be6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -162,7 +162,7 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_mime (0.1.3)
+    mini_mime (0.1.4)
     mini_portile2 (2.2.0)
     minitest (5.10.3)
     multi_json (1.12.1)