diff --git a/.envrc b/.envrc
index 802d197..2b1d835 100644
--- a/.envrc
+++ b/.envrc
@@ -17,7 +17,7 @@ case "$(uname | tr A-Z a-z)-$(uname -m)" in
         bzl=$(direnv fetchurl "${_u}linux-arm64" sha256-wd5oYN1PjV4uwnAJe9RtaiEblxoLizhVl4S9BR6pUKE=);;
     darwin-x86_64)
         bzl=$(direnv fetchurl "${_u}darwin-amd64" sha256-5IW7+EUy0CpgsOsjxwJhC1QI3zoZkIek8rXgmVu/LVo=);;
-    darwin-aarch64)
+    darwin-arm64)
         bzl=$(direnv fetchurl "${_u}darwin-arm64" sha256-wi1IYBRm2dOwQ8zXQFHy9CMPm59FCfCXAXyXMDqojRM=);;
     *)
         >&2 echo "unsupported architecture tuple $(uname | tr A-Z a-z)-$(uname -m)"