diff --git a/pom.xml b/pom.xml
index a836966a36..faa8a1c16c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -52,7 +52,7 @@
   </distributionManagement>
 
   <properties>
-    <project.version>0.4.1-SNAPSHOT</project.version>
+    <project.version>0.4.0-incubating</project.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
diff --git a/version.sbt b/version.sbt
index 1d60ca0f9b..249c9f9878 100644
--- a/version.sbt
+++ b/version.sbt
@@ -15,4 +15,4 @@
  * limitations under the License.
  */
 
-ThisBuild / version := "0.4.1-SNAPSHOT"
+ThisBuild / version := "0.4.0-incubating"