diff --git a/CHANGELOG.md b/CHANGELOG.md
index 41308683..84779e14 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-# WIP
+# 0.12.2
 
 - Fix null pointer exception when `contains?` is called with an entity (PR #114, thx [Kevin Lynagh](https://github.com/lynaghk))
 
diff --git a/README.md b/README.md
index 7568c938..76ec5d3b 100644
--- a/README.md
+++ b/README.md
@@ -62,7 +62,7 @@ For more examples, see [our acceptance test suite](test/datascript/test/).
 :dependencies [
   [org.clojure/clojure "1.7.0"]
   [org.clojure/clojurescript "0.0-3291"]
-  [datascript "0.12.1"]
+  [datascript "0.12.2"]
 ]
 ```
 
@@ -142,7 +142,7 @@ _Note:_ DataScript 0.11.0 and later will only work with CLJS 0.0-3196 and later
 DataScript can be used from any JS engine without additional dependencies:
 
 ```html
-<script src="https://github.com/tonsky/datascript/releases/download/0.12.1/datascript-0.12.1.min.js"></script>
+<script src="https://github.com/tonsky/datascript/releases/download/0.12.2/datascript-0.12.2.min.js"></script>
 ```
 
 or as a CommonJS module ([npm page](https://www.npmjs.org/package/datascript)):
diff --git a/project.clj b/project.clj
index 1dab7be9..7d1385d8 100644
--- a/project.clj
+++ b/project.clj
@@ -1,4 +1,4 @@
-(defproject datascript "0.12.1"
+(defproject datascript "0.12.2"
   :description "An implementation of Datomic in-memory database and Datalog query engine in ClojureScript"
   :license {:name "Eclipse"
             :url "http://www.eclipse.org/legal/epl-v10.html"}
diff --git a/release-js/package.json b/release-js/package.json
index 2e338ee3..484b886c 100644
--- a/release-js/package.json
+++ b/release-js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "datascript",
-  "version": "0.12.1",
+  "version": "0.12.2",
   "description": "Immutable in-memory triplestore with Datalog queries",
   "homepage": "https://github.com/tonsky/datascript",
   "author": "Nikita Prokopov (https://github.com/tonsky)",
diff --git a/release-js/wrapper.prefix b/release-js/wrapper.prefix
index 43f8cc94..11f00c09 100644
--- a/release-js/wrapper.prefix
+++ b/release-js/wrapper.prefix
@@ -1,5 +1,5 @@
 /**
- * Datascript v0.12.1
+ * Datascript v0.12.2
  *
  * Copyright 2014-2015 Nikita Prokopov
  *