diff --git a/all/pom.xml b/all/pom.xml
index b8945deb90..971c35b3d7 100644
--- a/all/pom.xml
+++ b/all/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-all</artifactId>
diff --git a/buffer/pom.xml b/buffer/pom.xml
index 6d99ffc1c6..ce8bedfdcf 100644
--- a/buffer/pom.xml
+++ b/buffer/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-buffer</artifactId>
diff --git a/codec-http/pom.xml b/codec-http/pom.xml
index ea810a1eea..489d860316 100644
--- a/codec-http/pom.xml
+++ b/codec-http/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-codec-http</artifactId>
diff --git a/codec-socks/pom.xml b/codec-socks/pom.xml
index 0c2d6f9853..46f8b5db2a 100644
--- a/codec-socks/pom.xml
+++ b/codec-socks/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-codec-socks</artifactId>
diff --git a/codec/pom.xml b/codec/pom.xml
index 9d589b35cd..3bb4d6c5df 100644
--- a/codec/pom.xml
+++ b/codec/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-codec</artifactId>
diff --git a/common/pom.xml b/common/pom.xml
index 9b03ab992c..e074aaaee4 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-common</artifactId>
diff --git a/example/pom.xml b/example/pom.xml
index 4a365a4025..927adfc72c 100644
--- a/example/pom.xml
+++ b/example/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-example</artifactId>
diff --git a/handler/pom.xml b/handler/pom.xml
index ea86cc7587..b7a93a7c06 100644
--- a/handler/pom.xml
+++ b/handler/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-handler</artifactId>
diff --git a/microbench/pom.xml b/microbench/pom.xml
index cb6ed36d4d..f1fe15fa0b 100644
--- a/microbench/pom.xml
+++ b/microbench/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-microbench</artifactId>
diff --git a/pom.xml b/pom.xml
index 37dbd82017..0333f94694 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,7 +26,7 @@
   <groupId>io.netty</groupId>
   <artifactId>netty-parent</artifactId>
   <packaging>pom</packaging>
-  <version>4.0.12.Final</version>
+  <version>4.0.13.Final-SNAPSHOT</version>
 
   <name>Netty</name>
   <url>http://netty.io/</url>
@@ -53,7 +53,7 @@
     <url>https://github.com/netty/netty</url>
     <connection>scm:git:git://github.com/netty/netty.git</connection>
     <developerConnection>scm:git:ssh://git@github.com/netty/netty.git</developerConnection>
-    <tag>netty-4.0.12.Final</tag>
+    <tag>HEAD</tag>
   </scm>
 
   <developers>
diff --git a/tarball/pom.xml b/tarball/pom.xml
index 819f34f94b..c337800f69 100644
--- a/tarball/pom.xml
+++ b/tarball/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-tarball</artifactId>
diff --git a/testsuite-osgi/pom.xml b/testsuite-osgi/pom.xml
index cf099fafa4..7db2d1aaf1 100644
--- a/testsuite-osgi/pom.xml
+++ b/testsuite-osgi/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-testsuite-osgi-parent</artifactId>
diff --git a/testsuite-osgi/testsuite-osgi-deps/pom.xml b/testsuite-osgi/testsuite-osgi-deps/pom.xml
index 6dc72fd512..b60c7726ee 100644
--- a/testsuite-osgi/testsuite-osgi-deps/pom.xml
+++ b/testsuite-osgi/testsuite-osgi-deps/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-testsuite-osgi-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-testsuite-osgi-deps</artifactId>
diff --git a/testsuite-osgi/testsuite-osgi-exam/pom.xml b/testsuite-osgi/testsuite-osgi-exam/pom.xml
index 5fda5efe5f..9e6e843356 100644
--- a/testsuite-osgi/testsuite-osgi-exam/pom.xml
+++ b/testsuite-osgi/testsuite-osgi-exam/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-testsuite-osgi-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-testsuite-osgi-exam</artifactId>
diff --git a/testsuite-osgi/testsuite-osgi-split/pom.xml b/testsuite-osgi/testsuite-osgi-split/pom.xml
index 52c339eb99..cc4e887b24 100644
--- a/testsuite-osgi/testsuite-osgi-split/pom.xml
+++ b/testsuite-osgi/testsuite-osgi-split/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-testsuite-osgi-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-testsuite-osgi-split</artifactId>
diff --git a/testsuite/pom.xml b/testsuite/pom.xml
index 3fd5a4f7d1..a2a96fe741 100644
--- a/testsuite/pom.xml
+++ b/testsuite/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-testsuite</artifactId>
diff --git a/transport-rxtx/pom.xml b/transport-rxtx/pom.xml
index 89f8d1b137..4a42ae2403 100644
--- a/transport-rxtx/pom.xml
+++ b/transport-rxtx/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-transport-rxtx</artifactId>
diff --git a/transport-sctp/pom.xml b/transport-sctp/pom.xml
index 93c4bff8e9..7fdd26fd71 100644
--- a/transport-sctp/pom.xml
+++ b/transport-sctp/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-transport-sctp</artifactId>
diff --git a/transport-udt/pom.xml b/transport-udt/pom.xml
index acef5b4825..4c27f0f9f5 100644
--- a/transport-udt/pom.xml
+++ b/transport-udt/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-transport-udt</artifactId>
diff --git a/transport/pom.xml b/transport/pom.xml
index 5ceb143759..85cf7dd638 100644
--- a/transport/pom.xml
+++ b/transport/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.netty</groupId>
     <artifactId>netty-parent</artifactId>
-    <version>4.0.12.Final</version>
+    <version>4.0.13.Final-SNAPSHOT</version>
   </parent>
 
   <artifactId>netty-transport</artifactId>