diff --git a/Gemfile.lock b/Gemfile.lock
index 3337a09..2b71dbd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,6 +11,7 @@ GEM
 
 PLATFORMS
   x64-mingw-ucrt
+  x86_64-linux
 
 DEPENDENCIES
   kramdown (~> 2.5)