diff --git a/Gemfile.lock b/Gemfile.lock
index 4eed543a12..0462d12712 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -198,7 +198,9 @@ GEM
       mime-types (>= 1.16, < 4)
     method_source (0.8.2)
     mime-types (2.99.3)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_portile2 (2.1.0)
     minitest (5.9.1)
     multi_json (1.12.1)
@@ -235,7 +237,7 @@ GEM
       spoon (~> 0.0)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
-    rack (1.6.4)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.7.1)