diff --git a/Gemfile.lock b/Gemfile.lock
index 24800ed..3a30b50 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -258,6 +258,7 @@ PLATFORMS
   arm64-darwin-22
   x64-mingw-ucrt
   x86_64-darwin-20
+  x86_64-darwin-21
   x86_64-linux
 
 DEPENDENCIES