diff --git a/Gemfile.lock b/Gemfile.lock
index 8902bae..99574d8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,13 +1,18 @@
 GEM
   remote: http://rubygems.org/
   specs:
+    crass (1.0.6)
     diff-lcs (1.1.3)
     httparty (0.10.2)
       multi_json (~> 1.0)
       multi_xml (>= 0.5.2)
+    mini_portile2 (2.4.0)
     multi_json (1.6.1)
     multi_xml (0.5.3)
-    nokogiri (1.5.6)
+    nokogiri (1.10.10)
+      mini_portile2 (~> 2.4.0)
+    nokogumbo (2.0.2)
+      nokogiri (~> 1.8, >= 1.8.4)
     rspec (2.9.0)
       rspec-core (~> 2.9.0)
       rspec-expectations (~> 2.9.0)
@@ -16,9 +21,10 @@ GEM
     rspec-expectations (2.9.1)
       diff-lcs (~> 1.1.3)
     rspec-mocks (2.9.0)
-    sanitize (2.0.3)
-      nokogiri (>= 1.4.4, < 1.6)
-      nokogiri (>= 1.4.4, < 1.6)
+    sanitize (5.2.1)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.8.0)
+      nokogumbo (~> 2.0)
 
 PLATFORMS
   ruby