diff --git a/src/smithlab_cpp b/src/smithlab_cpp
index 5645567..2b2f64c 160000
--- a/src/smithlab_cpp
+++ b/src/smithlab_cpp
@@ -1 +1 @@
-Subproject commit 5645567ba5046d1c5d3d1fa7c9fd4822b73dbdd6
+Subproject commit 2b2f64ca09a48b93b022273dd56fb36fec1ba9c7