diff --git a/Gemfile.lock b/Gemfile.lock
index 841ccaf..0a781f0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -97,7 +97,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (1.0.0)
-    mimemagic (0.3.4)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_magick (4.10.1)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
@@ -180,7 +182,7 @@ GEM
     turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
-    tzinfo (1.2.7)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     web-console (4.0.1)
       actionview (>= 6.0.0)