diff --git a/Gemfile.lock b/Gemfile.lock
index d71ded0..f42343e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -112,7 +112,9 @@ GEM
     measured (2.5.1)
       activesupport (>= 5.0)
     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)
     minitest (5.11.3)
@@ -209,7 +211,7 @@ GEM
     turbolinks (5.2.0)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     web-console (4.0.1)
       actionview (>= 6.0.0)