prepare site SNAPSHOT publication
diff --git a/doxia-tools/site-pom.xml b/doxia-tools/site-pom.xml
index c74b55f..6ed36ef 100644
--- a/doxia-tools/site-pom.xml
+++ b/doxia-tools/site-pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.maven</groupId>
     <artifactId>maven-parent.</artifactId>
-    <version>32</version>
+    <version>33-SNAPSHOT</version>
     <relativePath>../site-pom.xml</relativePath>
   </parent>
 
diff --git a/maven-plugins/site-pom.xml b/maven-plugins/site-pom.xml
index 0ecce05..7b722be 100644
--- a/maven-plugins/site-pom.xml
+++ b/maven-plugins/site-pom.xml
@@ -26,7 +26,7 @@
   <parent>
     <groupId>org.apache.maven</groupId>
     <artifactId>maven-parent.</artifactId>
-    <version>32</version>
+    <version>33-SNAPSHOT</version>
     <relativePath>../site-pom.xml</relativePath>
   </parent>
 
diff --git a/maven-shared-components/site-pom.xml b/maven-shared-components/site-pom.xml
index 5d159c6..93feeb0 100644
--- a/maven-shared-components/site-pom.xml
+++ b/maven-shared-components/site-pom.xml
@@ -26,7 +26,7 @@
   <parent>
     <groupId>org.apache.maven</groupId>
     <artifactId>maven-parent.</artifactId>
-    <version>32</version>
+    <version>33-SNAPSHOT</version>
     <relativePath>../site-pom.xml</relativePath>
   </parent>
 
diff --git a/maven-skins/site-pom.xml b/maven-skins/site-pom.xml
index a833b74..b51bd47 100644
--- a/maven-skins/site-pom.xml
+++ b/maven-skins/site-pom.xml
@@ -26,7 +26,7 @@
   <parent>
     <groupId>org.apache.maven</groupId>
     <artifactId>maven-parent.</artifactId>
-    <version>32</version>
+    <version>33-SNAPSHOT</version>
     <relativePath>../site-pom.xml</relativePath>
   </parent>
 
diff --git a/site-pom.xml b/site-pom.xml
index 42790c5..86f9ee4 100644
--- a/site-pom.xml
+++ b/site-pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.maven</groupId>
     <artifactId>maven-parent</artifactId>
-    <version>32</version>
+    <version>33-SNAPSHOT</version>
     <relativePath>./pom.xml</relativePath>
   </parent>