diff --git a/NEWS b/NEWS
index 5b64eda8..292fe5f3 100644
--- a/NEWS
+++ b/NEWS
@@ -4,6 +4,7 @@
   * Fixed a bug where Hash#{[]=, clear, removeObjectForKey} will immediately
     release an object.
   * Fixed a bug where Array#delete will immediately release an object.
+  * Fixed a bug where Struct#[]= will immediately release an object.
 
 = RubyMotion 2.17 =
 
diff --git a/vm b/vm
index eab5f755..ad037daf 160000
--- a/vm
+++ b/vm
@@ -1 +1 @@
-Subproject commit eab5f75536c20f0d34cd76f38863e3d03a253b1b
+Subproject commit ad037daf3a2ed9acfecf89ba2dc1821d849eb9f2