diff --git a/external/c-leanvm-xmss b/external/c-leanvm-xmss
index 15b5608..61df6a6 160000
--- a/external/c-leanvm-xmss
+++ b/external/c-leanvm-xmss
@@ -1 +1 @@
-Subproject commit 15b5608cdae9e3fd6cfd452922c6a46cfef02f0b
+Subproject commit 61df6a6354596cf25533e2d2292806dece999881