diff --git a/src/dlib b/src/dlib
index ad1b167..b4bcfb7 160000
--- a/src/dlib
+++ b/src/dlib
@@ -1 +1 @@
-Subproject commit ad1b167e2b527a2386f7a42e6f908a0f667b5089
+Subproject commit b4bcfb7929ca87d59a35719c43b34d64ecaec9a0