diff --git a/Gemfile.lock b/Gemfile.lock
index bcfa8aa..8564e7f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -171,7 +171,9 @@ GEM
     meta-tags (2.11.1)
       actionpack (>= 3.2.0, < 6.1)
     method_source (0.9.2)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
@@ -313,7 +315,7 @@ GEM
     thread_safe (0.3.6)
     tilt (2.0.8)
     timecop (0.9.1)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uglifier (4.1.17)
       execjs (>= 0.3.0, < 3)