diff --git a/Gemfile.lock b/Gemfile.lock
index 019ab5f..7b0b942 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -130,7 +130,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     mini_racer (0.2.6)
@@ -233,7 +235,7 @@ GEM
     turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     warden (1.2.8)
       rack (>= 2.0.6)