diff --git a/spack b/spack
index 12b647e7d..6725e4736 160000
--- a/spack
+++ b/spack
@@ -1 +1 @@
-Subproject commit 12b647e7da34acab39bcffe78db5620f0a612810
+Subproject commit 6725e4736fea30bcc18ef8ae25425c226a78ee89