diff --git a/vlsi/hammer b/vlsi/hammer
index 95428fb4..52c9b019 160000
--- a/vlsi/hammer
+++ b/vlsi/hammer
@@ -1 +1 @@
-Subproject commit 95428fb44f3d8eda395b496dbdd4e04689e08acb
+Subproject commit 52c9b0191fbc32dc40c62f3b75374b1f46f39f0f