diff --git a/Gemfile.lock b/Gemfile.lock
index 6a05bfc..7c5d42b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -132,15 +132,17 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     multi_json (1.13.1)
     multi_test (0.1.2)
     nio4r (2.3.0)
-    nokogiri (1.8.2)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.4)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     public_suffix (3.0.2)
     puma (3.11.3)
+    racc (1.6.0)
     rack (2.0.4)
     rack-contrib (2.0.1)
       rack (~> 2.0)