diff --git a/pom.xml b/pom.xml
index e1c20acc..cd484360 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>org.springframework.ws</groupId>
     <artifactId>spring-ws</artifactId>
-    <version>4.0.0-M1</version>
+    <version>4.0.0-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <name>Spring Web Services</name>
diff --git a/spring-ws-core/pom.xml b/spring-ws-core/pom.xml
index 15c9c5f4..e37fb0de 100644
--- a/spring-ws-core/pom.xml
+++ b/spring-ws-core/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.springframework.ws</groupId>
         <artifactId>spring-ws</artifactId>
-        <version>4.0.0-M1</version>
+        <version>4.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>spring-ws-core</artifactId>
diff --git a/spring-ws-security/pom.xml b/spring-ws-security/pom.xml
index b26d7ca1..b995e88e 100644
--- a/spring-ws-security/pom.xml
+++ b/spring-ws-security/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.springframework.ws</groupId>
         <artifactId>spring-ws</artifactId>
-        <version>4.0.0-M1</version>
+        <version>4.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>spring-ws-security</artifactId>
diff --git a/spring-ws-support/pom.xml b/spring-ws-support/pom.xml
index d7accd99..90721116 100644
--- a/spring-ws-support/pom.xml
+++ b/spring-ws-support/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>org.springframework.ws</groupId>
 		<artifactId>spring-ws</artifactId>
-		<version>4.0.0-M1</version>
+		<version>4.0.0-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>spring-ws-support</artifactId>
diff --git a/spring-ws-test/pom.xml b/spring-ws-test/pom.xml
index cb3d0f6c..5f7afdd7 100644
--- a/spring-ws-test/pom.xml
+++ b/spring-ws-test/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>org.springframework.ws</groupId>
 		<artifactId>spring-ws</artifactId>
-		<version>4.0.0-M1</version>
+		<version>4.0.0-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>spring-ws-test</artifactId>
diff --git a/spring-xml/pom.xml b/spring-xml/pom.xml
index cc169fb0..8208a77e 100644
--- a/spring-xml/pom.xml
+++ b/spring-xml/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>org.springframework.ws</groupId>
 		<artifactId>spring-ws</artifactId>
-		<version>4.0.0-M1</version>
+		<version>4.0.0-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>spring-xml</artifactId>