diff --git a/oaipmh-core/pom.xml b/oaipmh-core/pom.xml
index 16280b793a23145c9b0b46546decdf7dcacadc61..2ffea1db102523d4dae322973f43e48fd2cfbbd2 100644
--- a/oaipmh-core/pom.xml
+++ b/oaipmh-core/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<artifactId>oaipmh</artifactId>
 		<groupId>info.textgrid.middleware</groupId>
-		<version>4.0.0-SNAPSHOT</version>
+		<version>4.0.0</version>
 	</parent>
 	<groupId>info.textgrid.middleware</groupId>
 	<artifactId>oaipmh-core</artifactId>
diff --git a/oaipmh-webapp/pom.xml b/oaipmh-webapp/pom.xml
index e291a80ddd769e0a8ea73bd81aabe905552403ea..6b3f65e599cf2c52ae21b9236acc1d02f8df0a9e 100644
--- a/oaipmh-webapp/pom.xml
+++ b/oaipmh-webapp/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<artifactId>oaipmh</artifactId>
 		<groupId>info.textgrid.middleware</groupId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0</version>
 	</parent>
 	<groupId>info.textgrid.middleware</groupId>
 	<artifactId>oaipmh-webapp</artifactId>
diff --git a/pom.xml b/pom.xml
index cecefacce8c8a6eddb2098fedfe9391d022a8063..713cd91d5aa0714f78a1042096e61460ffa86c50 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>info.textgrid.middleware</groupId>
 	<artifactId>oaipmh</artifactId>
-	<version>4.0.0-SNAPSHOT</version>
+	<version>4.0.0</version>
 	<packaging>pom</packaging>
 	<name>DARIAHDE :: OAI-PMH DataProvider</name>
 	<properties>