diff --git a/Gemfile.lock b/Gemfile.lock
index 8e1c3f5..757f790 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -162,7 +162,9 @@ 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_magick (4.10.1)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
@@ -244,7 +246,7 @@ GEM
     responders (3.0.1)
       actionpack (>= 5.0)
       railties (>= 5.0)
-    rexml (3.2.4)
+    rexml (3.2.5)
     rspec-core (3.9.2)
       rspec-support (~> 3.9.3)
     rspec-expectations (3.9.2)