diff --git a/vendor/unbound b/vendor/unbound
index 4ab97c099..4a15da644 160000
--- a/vendor/unbound
+++ b/vendor/unbound
@@ -1 +1 @@
-Subproject commit 4ab97c09930443119d8bc4d8bea73df17838af93
+Subproject commit 4a15da644965778e548b52c6eea3568fe0fa0c31