diff --git a/CHANGELOG.md b/CHANGELOG.md
index f7553ba2fb097c..80c8ab98f1b55d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Node.js ChangeLog
 
+## 2016-03-21, Version 5.9.1 (Stable), @evanlucas
+
+### Notable changes
+
+* **contextify**: Fix vm regression introduced in v5.9.0 (Ali Ijaz Sheikh) https://github.com/nodejs/node/pull/5800
+
+### Commits
+
+* [[`c5d83695e1`](https://github.com/nodejs/node/commit/c5d83695e1)] - **contextify**: tie lifetimes of context & sandbox (Ali Ijaz Sheikh) [#5800](https://github.com/nodejs/node/pull/5800)
+
+
 ## 2016-03-16, Version 5.9.0 (Stable), @evanlucas
 
 ### Notable changes
diff --git a/src/node_version.h b/src/node_version.h
index 6548a03bdf6cc7..7505b7a09543c8 100644
--- a/src/node_version.h
+++ b/src/node_version.h
@@ -5,7 +5,7 @@
 #define NODE_MINOR_VERSION 9
 #define NODE_PATCH_VERSION 1
 
-#define NODE_VERSION_IS_RELEASE 0
+#define NODE_VERSION_IS_RELEASE 1
 
 #ifndef NODE_STRINGIFY
 #define NODE_STRINGIFY(n) NODE_STRINGIFY_HELPER(n)