diff --git a/Gemfile.lock b/Gemfile.lock
index 8ae21e5..d57cb36 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -115,7 +115,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     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 (5.14.2)
@@ -171,7 +173,7 @@ GEM
     responders (3.0.1)
       actionpack (>= 5.0)
       railties (>= 5.0)
-    rexml (3.2.4)
+    rexml (3.2.5)
     rspec-core (3.10.0)
       rspec-support (~> 3.10.0)
     rspec-expectations (3.10.0)