diff --git a/Gemfile.lock b/Gemfile.lock
index 755b113..b11b2a6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -90,7 +90,10 @@ GEM
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.19)
-    mimemagic (0.1.8)
+    mimemagic (0.4.3)
+      nokogiri (~> 1)
+      rake
+    mini_portile2 (2.8.0)
     mongo (1.7.0)
       bson (~> 1.7.0)
     mongoid (2.5.0)
@@ -98,7 +101,9 @@ GEM
       mongo (~> 1.7)
       tzinfo (~> 0.3.22)
     multi_json (1.3.6)
-    nokogiri (1.5.5)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     open4 (1.3.0)
     orm_adapter (0.4.0)
     pg (0.14.0)
@@ -106,6 +111,7 @@ GEM
     pony (1.4)
       mail (> 2.0)
     proxies (0.2.1)
+    racc (1.6.0)
     rack (1.4.7)
     rack-cache (1.2)
       rack (>= 0.4)