diff --git a/Gemfile.lock b/Gemfile.lock
index 3a0fab1..dbecbcc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -93,16 +93,18 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.8.0)
     minitest (5.10.2)
     multi_json (1.12.1)
     multi_test (0.1.2)
     nio4r (2.1.0)
-    nokogiri (1.7.2)
-      mini_portile2 (~> 2.1.0)
+    nokogiri (1.13.4)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pg (0.20.0)
     public_suffix (2.0.5)
     puma (3.8.2)
+    racc (1.6.0)
     rack (2.0.3)
     rack-test (0.6.3)
       rack (>= 1.0)