diff --git a/ruby-rails/Gemfile.lock b/ruby-rails/Gemfile.lock
index 5fad868..6e5a483 100644
--- a/ruby-rails/Gemfile.lock
+++ b/ruby-rails/Gemfile.lock
@@ -95,7 +95,9 @@ GEM
     msgpack (1.4.2)
     multi_xml (0.6.0)
     nio4r (2.5.5)
-    nokogiri (1.11.1-x86_64-darwin)
+    nokogiri (1.12.5-x86_64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.12.5-x86_64-linux)
       racc (~> 1.4)
     nuid-sdk (0.1.1)
       httparty (~> 0.18.1)
@@ -154,6 +156,7 @@ GEM
 
 PLATFORMS
   x86_64-darwin-19
+  x86_64-linux
 
 DEPENDENCIES
   bootsnap (>= 1.4.4)