diff --git a/Gemfile.lock b/Gemfile.lock
index 12112ca..fd75fde 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -138,7 +138,9 @@ GEM
       mimemagic (~> 0.3.2)
     memoist (0.16.2)
     method_source (1.0.0)
-    mimemagic (0.3.5)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.14.1)
@@ -151,7 +153,7 @@ GEM
     os (1.1.0)
     public_suffix (4.0.5)
     puma (3.12.6)
-    rack (2.2.2)
+    rack (2.2.3.1)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (6.0.3.1)