diff --git a/NEWS b/NEWS
index a72987f3..5180b6f7 100644
--- a/NEWS
+++ b/NEWS
@@ -14,6 +14,8 @@
     expression on REPL on Yosemite.
   * [OSX] Fixed a bug where the build directory for 3rd-party library wouldn't
     be removed with `rake clean' command.
+  * [OSX] Fixed a bug where it didn't handle `NSTaggedPointerString' objects
+    when it configured lower OS X version as deployment target on Yosemite.
   * Fixed a bug where Method#owner will return incorrect owner if the method 
     in inherited class would be overrided.
   * Fixed a bug where wrong method would called when it would include module 
diff --git a/vm b/vm
index c7928fb1..2c7fb4e7 160000
--- a/vm
+++ b/vm
@@ -1 +1 @@
-Subproject commit c7928fb1cf9e65553f64240ccc3d992c49c95e5e
+Subproject commit 2c7fb4e72f8d99ff3d9aa7040b0aefd657a2000c