diff --git a/Gemfile.lock b/Gemfile.lock
index 80a6252..d92c5ab 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -131,7 +131,9 @@ GEM
     mime-types (3.3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.1009)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_magick (4.9.5)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
@@ -223,7 +225,7 @@ GEM
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.10)
-    tzinfo (1.2.6)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext