diff --git a/config-examples/pom.xml b/config-examples/pom.xml
index d4ce256..5616a0d 100644
--- a/config-examples/pom.xml
+++ b/config-examples/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>io.scalecube</groupId>
     <artifactId>scalecube-config-parent</artifactId>
-    <version>0.4.20</version>
+    <version>0.4.21-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/config-vault/pom.xml b/config-vault/pom.xml
index 33f0219..c14afed 100644
--- a/config-vault/pom.xml
+++ b/config-vault/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>io.scalecube</groupId>
     <artifactId>scalecube-config-parent</artifactId>
-    <version>0.4.20</version>
+    <version>0.4.21-SNAPSHOT</version>
   </parent>
 
   <artifactId>scalecube-config-vault</artifactId>
diff --git a/config/pom.xml b/config/pom.xml
index 6f6564a..255819c 100644
--- a/config/pom.xml
+++ b/config/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>io.scalecube</groupId>
     <artifactId>scalecube-config-parent</artifactId>
-    <version>0.4.20</version>
+    <version>0.4.21-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/pom.xml b/pom.xml
index ed3df58..fda894c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
   </parent>
 
   <artifactId>scalecube-config-parent</artifactId>
-  <version>0.4.20</version>
+  <version>0.4.21-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <description>
@@ -34,7 +34,7 @@
     <connection>scm:git:https://github.com/scalecube/scalecube-config.git</connection>
     <developerConnection>scm:git:https://github.com/scalecube/scalecube-config.git
     </developerConnection>
-    <tag>release-0.4.20</tag>
+    <tag>HEAD</tag>
   </scm>
 
   <properties>