diff --git a/pom.xml b/pom.xml
index 0a6a2ec..f36cd16 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>org.xwiki.platform</groupId>
     <artifactId>xwiki-platform-core</artifactId>
-    <version>3.5</version>
+    <version>4.0</version>
   </parent>
   <groupId>org.xwiki.contrib</groupId>
   <artifactId>xwiki-platform-chat</artifactId>
diff --git a/xwiki-platform-chat-distribution/pom.xml b/xwiki-platform-chat-distribution/pom.xml
index afa57bb..95ad1c4 100644
--- a/xwiki-platform-chat-distribution/pom.xml
+++ b/xwiki-platform-chat-distribution/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>org.xwiki.contrib</groupId>
     <artifactId>xwiki-platform-chat</artifactId>
-    <version>3.5</version>
+    <version>4.0</version>
   </parent>
   <artifactId>xwiki-platform-chat-distribution</artifactId>
   <packaging>pom</packaging>
diff --git a/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-database-hsqldb/pom.xml b/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-database-hsqldb/pom.xml
index bfa081c..d7eff87 100644
--- a/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-database-hsqldb/pom.xml
+++ b/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-database-hsqldb/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>org.xwiki.enterprise</groupId>
     <artifactId>xwiki-enterprise-database</artifactId>
-    <version>3.5</version>
+    <version>4.0</version>
   </parent>
   <groupId>org.xwiki.contrib</groupId>
   <artifactId>xwiki-platform-chat-distribution-database-hsqldb</artifactId>
diff --git a/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-jetty-hsqldb/pom.xml b/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-jetty-hsqldb/pom.xml
index 78f3a34..57e7980 100644
--- a/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-jetty-hsqldb/pom.xml
+++ b/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-jetty-hsqldb/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>org.xwiki.enterprise</groupId>
     <artifactId>xwiki-enterprise-jetty</artifactId>
-    <version>3.5</version>
+    <version>4.0</version>
   </parent>
   <groupId>org.xwiki.contrib</groupId>
   <artifactId>xwiki-platform-chat-distribution-jetty-hsqldb</artifactId>
diff --git a/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-ui-all/pom.xml b/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-ui-all/pom.xml
index ea1f08a..9131dd6 100644
--- a/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-ui-all/pom.xml
+++ b/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-ui-all/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>org.xwiki.contrib</groupId>
     <artifactId>xwiki-platform-chat-distribution</artifactId>
-    <version>3.5</version>
+    <version>4.0</version>
   </parent>
   <artifactId>xwiki-platform-chat-distribution-ui-all</artifactId>
   <packaging>xar</packaging>
diff --git a/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-war/pom.xml b/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-war/pom.xml
index 389d458..8b82684 100644
--- a/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-war/pom.xml
+++ b/xwiki-platform-chat-distribution/xwiki-platform-chat-distribution-war/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>org.xwiki.contrib</groupId>
     <artifactId>xwiki-platform-chat-distribution</artifactId>
-    <version>3.5</version>
+    <version>4.0</version>
   </parent>
   <artifactId>xwiki-platform-chat-distribution-war</artifactId>
   <packaging>war</packaging>
diff --git a/xwiki-platform-chat-server/pom.xml b/xwiki-platform-chat-server/pom.xml
index cd67274..29c90a3 100644
--- a/xwiki-platform-chat-server/pom.xml
+++ b/xwiki-platform-chat-server/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>org.xwiki.contrib</groupId>
     <artifactId>xwiki-platform-chat</artifactId>
-    <version>3.5</version>
+    <version>4.0</version>
   </parent>
   <artifactId>xwiki-platform-chat-server</artifactId>
 
diff --git a/xwiki-platform-chat-ui/pom.xml b/xwiki-platform-chat-ui/pom.xml
index 2d151f1..ba5c1d7 100644
--- a/xwiki-platform-chat-ui/pom.xml
+++ b/xwiki-platform-chat-ui/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>org.xwiki.contrib</groupId>
     <artifactId>xwiki-platform-chat</artifactId>
-    <version>3.5</version>
+    <version>4.0</version>
   </parent>
   <artifactId>xwiki-platform-chat-ui</artifactId>
   <packaging>xar</packaging>