diff --git a/doxia-decoration-model/pom.xml b/doxia-decoration-model/pom.xml
index d2471d8..336a561 100644
--- a/doxia-decoration-model/pom.xml
+++ b/doxia-decoration-model/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.maven.doxia</groupId>
     <artifactId>doxia-sitetools</artifactId>
-    <version>2.0.0-M3</version>
+    <version>2.0.0-M4-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/doxia-integration-tools/pom.xml b/doxia-integration-tools/pom.xml
index 3e62cac..73b7bbf 100644
--- a/doxia-integration-tools/pom.xml
+++ b/doxia-integration-tools/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.maven.doxia</groupId>
     <artifactId>doxia-sitetools</artifactId>
-    <version>2.0.0-M3</version>
+    <version>2.0.0-M4-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/doxia-site-renderer/pom.xml b/doxia-site-renderer/pom.xml
index 1ca4134..a912011 100644
--- a/doxia-site-renderer/pom.xml
+++ b/doxia-site-renderer/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.maven.doxia</groupId>
     <artifactId>doxia-sitetools</artifactId>
-    <version>2.0.0-M3</version>
+    <version>2.0.0-M4-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/doxia-skin-model/pom.xml b/doxia-skin-model/pom.xml
index ccac415..c652f90 100644
--- a/doxia-skin-model/pom.xml
+++ b/doxia-skin-model/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.maven.doxia</groupId>
     <artifactId>doxia-sitetools</artifactId>
-    <version>2.0.0-M3</version>
+    <version>2.0.0-M4-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/pom.xml b/pom.xml
index b41db08..385255c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -31,7 +31,7 @@
 
   <groupId>org.apache.maven.doxia</groupId>
   <artifactId>doxia-sitetools</artifactId>
-  <version>2.0.0-M3</version>
+  <version>2.0.0-M4-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <name>Doxia Sitetools</name>
@@ -76,7 +76,7 @@
     <wagonVersion>2.8</wagonVersion>
     <junitVersion>5.8.2</junitVersion>
     <maven.site.path>doxia-sitetools-archives/doxia-sitetools-LATEST</maven.site.path>
-    <project.build.outputTimestamp>2022-06-20T18:18:32Z</project.build.outputTimestamp>
+    <project.build.outputTimestamp>2022-06-20T18:19:40Z</project.build.outputTimestamp>
   </properties>
 
   <dependencyManagement>