diff --git a/NEWS b/NEWS
index 5afe0f82..c7c19afd 100644
--- a/NEWS
+++ b/NEWS
@@ -24,6 +24,7 @@
   * Improved Numeric#{div, to_int} performance. 20-60% faster.
   * Improved Fixnum#== and Float#== performance when it would compare an object.
     2.5-3 times faster.
+  * Improved Enumerable#grep performance. 2 times faster.
   * Improved build system in order to compile spec files in parallel as much as
     possible.
 
diff --git a/vm b/vm
index f967664a..b5587030 160000
--- a/vm
+++ b/vm
@@ -1 +1 @@
-Subproject commit f967664aba1a99bce01fd0f65241269f8bdfb284
+Subproject commit b55870306900ea635e1ce477b5a22723c6457cca