diff --git a/internal/rosa/rosa.go b/internal/rosa/rosa.go
index 6b092fd..5c3b030 100644
--- a/internal/rosa/rosa.go
+++ b/internal/rosa/rosa.go
@@ -199,10 +199,18 @@ func (t Toolchain) New(
 
 	case toolchainStage3:
 		name += "-boot"
-		const (
-			version  = "20260111T160052Z"
+		var version, checksum string
+		switch runtime.GOARCH {
+		case "amd64":
+			version = "20260111T160052Z"
 			checksum = "c5_FwMnRN8RZpTdBLGYkL4RR8ampdaZN2JbkgrFLe8-QHQAVQy08APVvIL6eT7KW"
-		)
+		case "arm64":
+			version = "20260125T234618Z"
+			checksum = "79uRbRI44PyknQQ9RlFUQrwqplup7vImiIk6klefL8TN-fT42TXMS_v4XszwexCb"
+
+		default:
+			panic("unsupported target " + runtime.GOARCH)
+		}
 		path = fhs.AbsRoot.Append("bin", "bash")
 		args[0] = "bash"
 		support = slices.Concat([]pkg.Artifact{