diff --git a/Gemfile.lock b/Gemfile.lock
index 6fc2d75..c341e82 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -84,7 +84,9 @@ GEM
     marcel (0.3.2)
       mimemagic (~> 0.3.2)
     method_source (0.9.0)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.0)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
@@ -94,7 +96,7 @@ GEM
       mini_portile2 (~> 2.4.0)
     pg (1.0.0)
     puma (3.12.2)
-    rack (2.1.1)
+    rack (2.2.3.1)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.1)