diff --git a/Gemfile.lock b/Gemfile.lock
index cc65c0c..43a8344 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -90,7 +90,9 @@ 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 (2.5.0)
     minitest (5.14.2)
@@ -140,7 +142,7 @@ GEM
     regexp_parser (2.1.1)
     reverse_markdown (2.0.0)
       nokogiri
-    rexml (3.2.4)
+    rexml (3.2.5)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)
       rspec-expectations (~> 3.9.0)