diff --git a/Gemfile.lock b/Gemfile.lock
index bdafe49..8e68d1b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -85,18 +85,20 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2018.0812)
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     multi_json (1.13.1)
     multi_xml (0.6.0)
-    nokogiri (1.10.5)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     phantomjs (1.9.8.0)
     poltergeist (1.6.0)
       capybara (~> 2.1)
       cliver (~> 0.3.1)
       multi_json (~> 1.0)
       websocket-driver (>= 0.2.0)
+    racc (1.6.0)
     rack (1.6.12)
     rack-test (0.6.3)
       rack (>= 1.0)