diff --git a/Gemfile.lock b/Gemfile.lock
index 887440e15..3a2e83ed2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -264,7 +264,8 @@ GEM
       rack-contrib (>= 1.1, < 3)
       railties (>= 3.0.0, < 7)
     method_source (1.0.0)
-    mimemagic (0.3.6)
+    mimemagic (0.3.8)
+      nokogiri (~> 1)
     mini_mime (1.0.2)
     mini_portile2 (2.5.0)
     minitest (5.14.4)