diff --git a/vendor/nim-merkletree b/vendor/nim-merkletree
index e465f38e..685c40cc 160000
--- a/vendor/nim-merkletree
+++ b/vendor/nim-merkletree
@@ -1 +1 @@
-Subproject commit e465f38efae72fbbe5f9f941a5c66a11660f3b5f
+Subproject commit 685c40cc5ec7d66112e8cf6be4eed59f619c51de