diff --git a/Gemfile.lock b/Gemfile.lock
index 28d56c0..e2dbce7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -76,8 +76,10 @@ GEM
     nio4r (2.5.8)
     nokogiri (1.13.3-x86_64-darwin)
       racc (~> 1.4)
+    nokogiri (1.13.3-x86_64-linux)
+      racc (~> 1.4)
     racc (1.6.0)
-    rack (2.2.3)
+    rack (2.2.6.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.6.2)
@@ -123,6 +125,7 @@ GEM
 
 PLATFORMS
   x86_64-darwin-19
+  x86_64-linux
 
 DEPENDENCIES
   openlab_ruby!