diff --git a/vendor/nim-beacon-chain b/vendor/nim-beacon-chain
index 0d37ed7a2..e4321dc4e 160000
--- a/vendor/nim-beacon-chain
+++ b/vendor/nim-beacon-chain
@@ -1 +1 @@
-Subproject commit 0d37ed7a2aa5dbc88a1d9d6ab8b95177b6f0eed2
+Subproject commit e4321dc4edc6949464380601bfb2b872c0cb2f63