diff --git a/CHANGELOG b/CHANGELOG
index bbde639..69e0e74 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+0.5.0
+-----
+
+* 
+
 0.4.0
 -----
 
diff --git a/README.md b/README.md
index c823d44..1a03777 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ TypeAlias for Java
 <dependency>
     <groupId>net.kemitix</groupId>
     <artifactId>mon</artifactId>
-    <version>0.3.0</version>
+    <version>0.4.0</version>
 </dependency>
 ```
 
diff --git a/pom.xml b/pom.xml
index 12c8406..af38284 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
         <version>3.2.4</version>
     </parent>
     <artifactId>mon</artifactId>
-    <version>0.4.0-SNAPSHOT</version>
+    <version>0.5.0-SNAPSHOT</version>
 
     <properties>
         <junit.version>4.12</junit.version>
diff --git a/src/test/java/net/kemitix/mon/IdentityTest.java b/src/test/java/net/kemitix/mon/IdentityTest.java
index 513a979..db95452 100644
--- a/src/test/java/net/kemitix/mon/IdentityTest.java
+++ b/src/test/java/net/kemitix/mon/IdentityTest.java
@@ -10,15 +10,6 @@ import org.junit.Test;
  */
 public class IdentityTest implements WithAssertions {
 
-    @Test
-    public void functorLawMapIdEqualsId() {
-        //given
-        final String id = "id";
-        //when
-
-        //then
-    }
-
     @Test
     public void canMapIdentityFromStringToInteger() {
         //given