diff --git a/Gemfile.lock b/Gemfile.lock
index 65de1bd..5bae294 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,13 +26,15 @@ GEM
       ntlm-http (~> 0.1, >= 0.1.1)
       webrobots (>= 0.0.9, < 0.2)
     mime-types (2.6.1)
-    mini_portile (0.6.2)
+    mini_portile2 (2.8.0)
     multi_json (1.9.2)
     net-http-digest_auth (1.4)
     net-http-persistent (2.9.4)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     ntlm-http (0.1.1)
+    racc (1.6.0)
     rack (1.5.2)
     rake (10.1.0)
     ref (2.0.0)