diff --git a/Gemfile.lock b/Gemfile.lock
index 1d5c212..e4e947d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -141,7 +141,9 @@ 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 (1.0.1)
     mini_portile2 (2.4.0)
     minitest (5.14.0)
@@ -166,7 +168,7 @@ GEM
     psych (3.1.0)
     pundit (2.0.1)
       activesupport (>= 3.0.0)
-    rack (2.1.1)
+    rack (2.2.3.1)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.3)