diff --git a/libs/spirit b/libs/spirit
index f95e5bd0e3..66d506466e 160000
--- a/libs/spirit
+++ b/libs/spirit
@@ -1 +1 @@
-Subproject commit f95e5bd0e3535acef53abcd881ef96212c61e9e8
+Subproject commit 66d506466e2cf4d2b31db8a225456537ab99a16a