diff --git a/Gemfile.lock b/Gemfile.lock
index 391811fc..0f4179dd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -216,6 +216,7 @@ PLATFORMS
   arm64-darwin-24
   x86_64-darwin-19
   x86_64-darwin-20
+  x86_64-darwin-21
   x86_64-linux
 
 DEPENDENCIES