diff --git a/core-cpp/pom.xml b/core-cpp/pom.xml
index f056c7d7..c863fc96 100644
--- a/core-cpp/pom.xml
+++ b/core-cpp/pom.xml
@@ -1,14 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 
 	<parent>
 		<groupId>org.ode4j</groupId>
 		<artifactId>parent</artifactId>
-		<version>0.4.0-SNAPSHOT</version>
+		<version>0.4.0</version>
 	</parent>
 
 	<artifactId>core-cpp</artifactId>
diff --git a/core/pom.xml b/core/pom.xml
index d0baeb41..953e3660 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -1,14 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 
 	<parent>
 		<groupId>org.ode4j</groupId>
 		<artifactId>parent</artifactId>
-		<version>0.4.0-SNAPSHOT</version>
+		<version>0.4.0</version>
 	</parent>
 
 	<artifactId>core</artifactId>
diff --git a/demo-cpp/pom.xml b/demo-cpp/pom.xml
index ccf3c0b5..ec208cf1 100644
--- a/demo-cpp/pom.xml
+++ b/demo-cpp/pom.xml
@@ -1,14 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 
 	<parent>
 		<groupId>org.ode4j</groupId>
 		<artifactId>parent</artifactId>
-		<version>0.4.0-SNAPSHOT</version>
+		<version>0.4.0</version>
 	</parent>
 
 	<artifactId>demo-cpp</artifactId>
diff --git a/demo/pom.xml b/demo/pom.xml
index 2c941a59..6a242c0c 100644
--- a/demo/pom.xml
+++ b/demo/pom.xml
@@ -1,12 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<parent>
 		<groupId>org.ode4j</groupId>
 		<artifactId>parent</artifactId>
-		<version>0.4.0-SNAPSHOT</version>
+		<version>0.4.0</version>
 	</parent>
 
 	<artifactId>demo</artifactId>
diff --git a/pom.xml b/pom.xml
index d002a60d..7033c23b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,7 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 
@@ -13,7 +11,7 @@
 
 	<groupId>org.ode4j</groupId>
 	<artifactId>parent</artifactId>
-	<version>0.4.0-SNAPSHOT</version>
+	<version>0.4.0</version>
 	<packaging>pom</packaging>
 
 	<modules>