diff --git a/client/pom.xml b/client/pom.xml
index 0a7c54a..52b8f12 100644
--- a/client/pom.xml
+++ b/client/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-project</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
 
diff --git a/common/pom.xml b/common/pom.xml
index 1b0a9dd..3c27023 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-project</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
 
diff --git a/compiler/backend/pom.xml b/compiler/backend/pom.xml
index fe2376d..e461d4e 100644
--- a/compiler/backend/pom.xml
+++ b/compiler/backend/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-compiler</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
 
diff --git a/compiler/frontend/beam/pom.xml b/compiler/frontend/beam/pom.xml
index 3fd3bc0..b5501d1 100644
--- a/compiler/frontend/beam/pom.xml
+++ b/compiler/frontend/beam/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-compiler</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../../</relativePath>
   </parent>
 
diff --git a/compiler/frontend/spark/pom.xml b/compiler/frontend/spark/pom.xml
index dd03c69..f135fd8 100644
--- a/compiler/frontend/spark/pom.xml
+++ b/compiler/frontend/spark/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-compiler</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../../</relativePath>
   </parent>
 
diff --git a/compiler/optimizer/pom.xml b/compiler/optimizer/pom.xml
index 31ab211..49a546d 100644
--- a/compiler/optimizer/pom.xml
+++ b/compiler/optimizer/pom.xml
@@ -35,7 +35,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-compiler</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
 
diff --git a/compiler/pom.xml b/compiler/pom.xml
index 145a350..1d6b396 100644
--- a/compiler/pom.xml
+++ b/compiler/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>nemo-project</artifactId>
     <groupId>org.apache.nemo</groupId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/compiler/test/pom.xml b/compiler/test/pom.xml
index 04fff74..54ef45a 100644
--- a/compiler/test/pom.xml
+++ b/compiler/test/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-compiler</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
 
diff --git a/conf/pom.xml b/conf/pom.xml
index 4a27b32..fc7ada1 100644
--- a/conf/pom.xml
+++ b/conf/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-project</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
 
diff --git a/examples/beam/pom.xml b/examples/beam/pom.xml
index 0869d6d..65651a3 100644
--- a/examples/beam/pom.xml
+++ b/examples/beam/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-examples</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
 
diff --git a/examples/nexmark/pom.xml b/examples/nexmark/pom.xml
index cfaeee8..9d6557b 100644
--- a/examples/nexmark/pom.xml
+++ b/examples/nexmark/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>nemo-examples</artifactId>
     <groupId>org.apache.nemo</groupId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/examples/pom.xml b/examples/pom.xml
index 0e91340..5f58afc 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>nemo-project</artifactId>
     <groupId>org.apache.nemo</groupId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/examples/spark/pom.xml b/examples/spark/pom.xml
index 8983391..7a7878c 100644
--- a/examples/spark/pom.xml
+++ b/examples/spark/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <artifactId>nemo-examples</artifactId>
     <groupId>org.apache.nemo</groupId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
 
diff --git a/pom.xml b/pom.xml
index f6a07d9..834ea5f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@
 
   <groupId>org.apache.nemo</groupId>
   <artifactId>nemo-project</artifactId>
-  <version>0.3</version>
+  <version>0.4-SNAPSHOT</version>
   <packaging>pom</packaging>
   <name>Nemo Project</name>
 
@@ -36,7 +36,7 @@
     <connection>scm:git:https://gitbox.apache.org/repos/asf/incubator-nemo.git</connection>
     <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/incubator-nemo.git</developerConnection>
     <url>https://github.com/apache/incubator-nemo/tree/${project.scm.tag}</url>
-    <tag>nemo-project-0.3rc1</tag>
+    <tag>master</tag>
   </scm>
 
   <properties>
diff --git a/runtime/common/pom.xml b/runtime/common/pom.xml
index c411aca..75cfa14 100644
--- a/runtime/common/pom.xml
+++ b/runtime/common/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-runtime</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
 
diff --git a/runtime/driver/pom.xml b/runtime/driver/pom.xml
index c76ef9d..51c8f94 100644
--- a/runtime/driver/pom.xml
+++ b/runtime/driver/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-runtime</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/runtime/executor/pom.xml b/runtime/executor/pom.xml
index 8e5bc12..2520a89 100644
--- a/runtime/executor/pom.xml
+++ b/runtime/executor/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-runtime</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
 
@@ -61,7 +61,7 @@
     <dependency>
       <groupId>org.apache.nemo</groupId>
       <artifactId>nemo-runtime-master</artifactId>
-      <version>0.3</version>
+      <version>0.4-SNAPSHOT</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/runtime/master/pom.xml b/runtime/master/pom.xml
index 6524275..5740e56 100644
--- a/runtime/master/pom.xml
+++ b/runtime/master/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-runtime</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
 
diff --git a/runtime/pom.xml b/runtime/pom.xml
index 9190eb4..71a9b45 100644
--- a/runtime/pom.xml
+++ b/runtime/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>nemo-project</artifactId>
     <groupId>org.apache.nemo</groupId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/runtime/test/pom.xml b/runtime/test/pom.xml
index 1feea00..91342f3 100644
--- a/runtime/test/pom.xml
+++ b/runtime/test/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-runtime</artifactId>
-    <version>0.3</version>
+    <version>0.4-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>