diff --git a/build.gradle b/build.gradle
index 7a144a265..f48ad84fd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ apply plugin: 'signing'
 apply plugin: 'maven'
 
 group = 'org.seasar.doma'
-version = '2.3.1-SNAPSHOT'
+version = '2.3.1'
 ext.isReleaseVersion = !version.endsWith("SNAPSHOT")
 ext.encoding = 'UTF-8'
 sourceCompatibility = jdkVersion
diff --git a/docs/sources/build.rst b/docs/sources/build.rst
index b1fd35b4e..4fa6c6c1a 100644
--- a/docs/sources/build.rst
+++ b/docs/sources/build.rst
@@ -82,7 +82,7 @@ Gradle でビルドを行う際のポイントは以下のとおりです。
   }
 
   dependencies {
-      compile "org.seasar.doma:doma:2.3.1-SNAPSHOT"
+      compile "org.seasar.doma:doma:2.3.1"
   }
 
 .. note::
diff --git a/docs/sources/release-notes.rst b/docs/sources/release-notes.rst
index b7cefe639..69551a385 100644
--- a/docs/sources/release-notes.rst
+++ b/docs/sources/release-notes.rst
@@ -2,6 +2,12 @@
 リリースノート
 ==============
 
+v2.3.1: 2015-05-30
+======================
+
+* `GH79 <https://github.com/domaframework/doma/pull/79>`_
+  SQLファイルを使った更新がスキップされる問題を修正
+
 v2.3.0: 2015-05-23
 ======================
 
diff --git a/src/main/java/org/seasar/doma/internal/Artifact.java b/src/main/java/org/seasar/doma/internal/Artifact.java
index 377f7cbdc..996ec22a8 100644
--- a/src/main/java/org/seasar/doma/internal/Artifact.java
+++ b/src/main/java/org/seasar/doma/internal/Artifact.java
@@ -26,7 +26,7 @@ public final class Artifact {
 
     private static final String NAME = "Doma";
 
-    private static final String VERSION = "2.3.1-SNAPSHOT";
+    private static final String VERSION = "2.3.1";
 
     public static String getName() {
         return NAME;