diff --git a/Gemfile.lock b/Gemfile.lock
index a7809d0..8f2ca94 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -194,7 +194,9 @@ GEM
     mime-types (3.3)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.1009)
-    mimemagic (0.3.3)
+    mimemagic (0.4.3)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.13.0)
@@ -257,7 +259,7 @@ GEM
     thread_safe (0.3.6)
     tilt (2.0.10)
     tins (1.22.2)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     xpath (3.2.0)
       nokogiri (~> 1.8)