diff --git a/vlsi/hammer b/vlsi/hammer
index 2f37cd31..2d3890bf 160000
--- a/vlsi/hammer
+++ b/vlsi/hammer
@@ -1 +1 @@
-Subproject commit 2f37cd3121d9a9e775efbe4554d9b74c30d01f61
+Subproject commit 2d3890bfca2ef8a8e8c74ed447bddbb30789fd5c