diff --git a/Gemfile.lock b/Gemfile.lock
index 95c236f..9e95e6d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -74,17 +74,21 @@ GEM
       ntlm-http (~> 0.1, >= 0.1.1)
       webrobots (~> 0.0, >= 0.0.9)
     mime-types (1.19)
+    mini_portile2 (2.8.0)
     multi_json (1.3.6)
     mysql2 (0.3.11)
     net-http-digest_auth (1.2.1)
     net-http-persistent (2.7)
-    nokogiri (1.5.5)
+    nokogiri (1.13.3)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     ntlm-http (0.1.1)
     open_id_authentication (1.1.0)
       rack-openid (~> 1.3)
     openid_active_record_store (1.0.1)
       rails (>= 3)
     polyglot (0.3.3)
+    racc (1.6.0)
     rack (1.4.1)
     rack-cache (1.2)
       rack (>= 0.4)