diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c5c806f..a2026a99 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,14 @@
 TweetNaCl.js Changelog
 ======================
 
+
+v0.12.1
+-------
+
+* Significantly improved performance of Salsa20 (~1.5x faster) and
+  Poly1305 (~3.5x faster) in `nacl-fast` version.
+
+
 v0.12.0
 -------
 
diff --git a/bower.json b/bower.json
index 18e4a64e..4135afee 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "tweetnacl",
-  "version": "0.12.0",
+  "version": "0.12.1",
   "homepage": "https://dchest.github.io/tweetnacl-js",
   "authors": [
     "TweetNaCl.js Contributors"
diff --git a/package.json b/package.json
index 9e6d2dde..8fc12e61 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "tweetnacl",
-  "version": "0.12.0",
+  "version": "0.12.1",
   "description": "Port of TweetNaCl cryptographic library to JavaScript",
   "main": "nacl.js",
   "directories": {