diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6dd9326..5fa24af 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## [Unreleased]
+## [0.1.0-alpha] - 2017-05-26
 ### Implements
 - Immutable API for:
   - Map (linked)
@@ -18,4 +18,5 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
   - SortedSet
   - NavigableSet
 
-[Unreleased]: https://github.com/PlateStack/immutable-collections/compare/v0.0.0...HEAD
+[Unreleased]: https://github.com/PlateStack/immutable-collections/compare/v0.1.0-alpha...HEAD
+[0.1.0-alpha]: https://github.com/PlateStack/immutable-collections/compare/v0.0.0...v0.1.0-alpha
diff --git a/pom.xml b/pom.xml
index 474614c..6614c50 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
 
     <groupId>org.platestack</groupId>
     <artifactId>immutable-collections</artifactId>
-    <version>0.1.0-SNAPSHOT</version>
+    <version>0.1.0-alpha</version>
     <packaging>jar</packaging>
 
     <name>immutable-collections</name>
diff --git a/src/test/kotlin/tests.kt b/src/test/kotlin/tests.kt
index 7543d97..b2ff483 100644
--- a/src/test/kotlin/tests.kt
+++ b/src/test/kotlin/tests.kt
@@ -30,11 +30,27 @@
  *  limitations under the License.
  */
 
+/*
+ *  Copyright (C) 2017 José Roberto de Araújo Júnior
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
 import io.kotlintest.matchers.shouldBe
 import io.kotlintest.specs.ShouldSpec
 import org.platestack.structure.immutable.*
 
-class Maps: ShouldSpec() {
+class KotlinTests: ShouldSpec() {
     init {
         "immutable maps should equates to normal maps" {
             immutableMapOf<String, String>() shouldBe mapOf<String, String>()