diff --git a/internal/rosa/gnu.go b/internal/rosa/gnu.go
index 603f23a6..5402049a 100644
--- a/internal/rosa/gnu.go
+++ b/internal/rosa/gnu.go
@@ -88,8 +88,8 @@ func init() {
 
 func (t Toolchain) newAutoconf() (pkg.Artifact, string) {
 	const (
-		version  = "2.72"
-		checksum = "-c5blYkC-xLDer3TWEqJTyh1RLbOd1c5dnRLKsDnIrg_wWNOLBpaqMY8FvmUFJ33"
+		version  = "2.73"
+		checksum = "yGabDTeOfaCUB0JX-h3REYLYzMzvpDwFmFFzHNR7QilChCUNE4hR6q7nma4viDYg"
 	)
 	return t.NewPackage("autoconf", version, pkg.NewHTTPGetTar(
 		nil, "https://ftpmirror.gnu.org/gnu/autoconf/autoconf-"+version+".tar.gz",