diff --git a/Gemfile.lock b/Gemfile.lock
index 0526058..3dcdbd6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -208,7 +208,7 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.5.0)
     minitar (0.6.1)
     minitest (5.11.3)
     mixlib-archive (0.4.19)
@@ -240,8 +240,9 @@ GEM
       net-ssh-gateway (>= 1.2.0)
     net-telnet (0.1.1)
     nio4r (2.3.1)
-    nokogiri (1.8.5)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.11.2)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     nori (2.6.0)
     notiffany (0.1.1)
       nenv (~> 0.1)
@@ -271,6 +272,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (3.0.3)
+    racc (1.5.2)
     rack (2.0.8)
     rainbow (3.0.0)
     rake (12.3.1)