diff --git a/vlsi/hammer b/vlsi/hammer
index 353af21d..52c9b019 160000
--- a/vlsi/hammer
+++ b/vlsi/hammer
@@ -1 +1 @@
-Subproject commit 353af21da3fe6f0c2e054ac513b5db583031b962
+Subproject commit 52c9b0191fbc32dc40c62f3b75374b1f46f39f0f