diff --git a/Gemfile.lock b/Gemfile.lock
index ca13568..46acb07 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -65,11 +65,12 @@ 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)
     nio4r (2.0.0)
-    nokogiri (1.7.2)
-      mini_portile2 (~> 2.1.0)
+    nokogiri (1.13.3)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pry (0.10.4)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
@@ -77,6 +78,7 @@ GEM
     pry-byebug (3.4.0)
       byebug (~> 9.0)
       pry (~> 0.10)
+    racc (1.6.0)
     rack (2.0.3)
     rack-test (0.6.3)
       rack (>= 1.0)