diff --git a/Gemfile.lock b/Gemfile.lock
index 9920056c7..2216a47d7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -313,7 +313,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mimemagic (0.3.2)
-    mini_mime (0.1.4)
+    mini_mime (1.0.0)
     mini_portile2 (2.3.0)
     minitest (5.10.3)
     moneta (0.8.1)