diff --git a/serverside_challenge_1/challenges/plute/Gemfile.lock b/serverside_challenge_1/challenges/plute/Gemfile.lock
index 0e1801662..51011b281 100644
--- a/serverside_challenge_1/challenges/plute/Gemfile.lock
+++ b/serverside_challenge_1/challenges/plute/Gemfile.lock
@@ -135,7 +135,9 @@ GEM
       net-protocol
       timeout
     nio4r (2.5.8)
-    nokogiri (1.13.4-x86_64-darwin)
+    nokogiri (1.13.6-x86_64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.13.6-x86_64-linux)
       racc (~> 1.4)
     pg (1.3.5)
     pry (0.14.1)
@@ -238,6 +240,7 @@ GEM
 
 PLATFORMS
   x86_64-darwin-19
+  x86_64-linux
 
 DEPENDENCIES
   bootsnap