diff --git a/Gemfile.lock b/Gemfile.lock
index b1c670d..dd8c0b3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -190,7 +190,9 @@ GEM
       mimemagic (~> 0.3.2)
     method_source (1.0.0)
     middleware (0.1.0)
-    mimemagic (0.3.4)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     mini_racer (0.3.1)
@@ -232,7 +234,7 @@ GEM
     public_suffix (4.0.4)
     puma (4.3.3)
       nio4r (~> 2.0)
-    rack (2.2.3)
+    rack (2.2.3.1)
     rack-protection (2.0.8.1)
       rack
     rack-proxy (0.6.5)