diff --git a/Library/Homebrew/cmd/vendor-install.sh b/Library/Homebrew/cmd/vendor-install.sh
index 10ca3630f0..847b11a441 100644
--- a/Library/Homebrew/cmd/vendor-install.sh
+++ b/Library/Homebrew/cmd/vendor-install.sh
@@ -22,6 +22,10 @@ then
   then
     ruby_FILENAME="portable-ruby-2.6.8.yosemite.bottle.tar.gz"
     ruby_SHA="0cb1cc7af109437fe0e020c9f3b7b95c3c709b140bde9f991ad2c1433496dd42"
+  elif [[ "${HOMEBREW_PROCESSOR}" == "arm64" ]]
+  then
+    ruby_FILENAME="portable-ruby-2.6.8.arm64_big_sur.bottle.tar.gz"
+    ruby_SHA="f2d5cab5a4dd49e5b3de780a3cd0a1f61642fea247d1c25aa40cd43f1be290b5"
   fi
 elif [[ -n "${HOMEBREW_LINUX}" ]]
 then