diff --git a/Gemfile.lock b/Gemfile.lock
index 0c8fd9c..f12b9a6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,18 +48,20 @@ 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)
     minitest (5.9.1)
     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)
     nyny (3.4.3)
       actionpack (~> 4.1.6)
       better_errors (~> 1.1.0)
       rack-contrib (~> 1.1.0)
       tilt (~> 1.4.1)
+    racc (1.6.0)
     rack (1.5.5)
     rack-contrib (1.1.0)
       rack (>= 0.9.1)