diff --git a/docs/pom.xml b/docs/pom.xml
index 17ab344..7590b44 100644
--- a/docs/pom.xml
+++ b/docs/pom.xml
@@ -8,7 +8,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-bus-parent</artifactId>
-		<version>4.0.0-SNAPSHOT</version>
+		<version>4.0.0-M1</version>
 	</parent>
 	<packaging>jar</packaging>
 	<name>Spring Cloud Bus Docs</name>
diff --git a/pom.xml b/pom.xml
index a43a969..09858b8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 	<modelVersion>4.0.0</modelVersion>
 
 	<artifactId>spring-cloud-bus-parent</artifactId>
-	<version>4.0.0-SNAPSHOT</version>
+	<version>4.0.0-M1</version>
 	<packaging>pom</packaging>
 
 	<name>spring-cloud-bus-parent</name>
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>4.0.0-SNAPSHOT</version>
+		<version>4.0.0-M1</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
@@ -30,9 +30,9 @@
 	</modules>
 
 	<properties>
-		<spring-cloud-commons.version>4.0.0-SNAPSHOT</spring-cloud-commons.version>
-		<spring-cloud-stream.version>4.0.0-SNAPSHOT</spring-cloud-stream.version>
-		<spring-cloud-function.version>4.0.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-commons.version>4.0.0-M1</spring-cloud-commons.version>
+		<spring-cloud-stream.version>4.0.0-M1</spring-cloud-stream.version>
+		<spring-cloud-function.version>4.0.0-M1</spring-cloud-function.version>
 		<bintray.package>bus</bintray.package>
 	</properties>
 
diff --git a/spring-cloud-bus-dependencies/pom.xml b/spring-cloud-bus-dependencies/pom.xml
index 0ab750f..582f21c 100644
--- a/spring-cloud-bus-dependencies/pom.xml
+++ b/spring-cloud-bus-dependencies/pom.xml
@@ -6,11 +6,11 @@
 	<parent>
 		<artifactId>spring-cloud-dependencies-parent</artifactId>
 		<groupId>org.springframework.cloud</groupId>
-		<version>4.0.0-SNAPSHOT</version>
+		<version>4.0.0-M1</version>
 		<relativePath/>
 	</parent>
 	<artifactId>spring-cloud-bus-dependencies</artifactId>
-	<version>4.0.0-SNAPSHOT</version>
+	<version>4.0.0-M1</version>
 	<packaging>pom</packaging>
 	<name>spring-cloud-bus-dependencies</name>
 	<description>Spring Cloud Bus Dependencies</description>
diff --git a/spring-cloud-bus-rsocket/pom.xml b/spring-cloud-bus-rsocket/pom.xml
index 64ab4be..c57ae7a 100644
--- a/spring-cloud-bus-rsocket/pom.xml
+++ b/spring-cloud-bus-rsocket/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-bus-parent</artifactId>
-		<version>4.0.0-SNAPSHOT</version>
+		<version>4.0.0-M1</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-bus-tests/pom.xml b/spring-cloud-bus-tests/pom.xml
index 067ba79..6744c95 100644
--- a/spring-cloud-bus-tests/pom.xml
+++ b/spring-cloud-bus-tests/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-bus-parent</artifactId>
-		<version>4.0.0-SNAPSHOT</version>
+		<version>4.0.0-M1</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-bus/pom.xml b/spring-cloud-bus/pom.xml
index 1fcf230..1399e3c 100644
--- a/spring-cloud-bus/pom.xml
+++ b/spring-cloud-bus/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-bus-parent</artifactId>
-		<version>4.0.0-SNAPSHOT</version>
+		<version>4.0.0-M1</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-starter-bus-amqp/pom.xml b/spring-cloud-starter-bus-amqp/pom.xml
index 08f88b5..5577660 100644
--- a/spring-cloud-starter-bus-amqp/pom.xml
+++ b/spring-cloud-starter-bus-amqp/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-bus-parent</artifactId>
-		<version>4.0.0-SNAPSHOT</version>
+		<version>4.0.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 	<artifactId>spring-cloud-starter-bus-amqp</artifactId>
diff --git a/spring-cloud-starter-bus-kafka/pom.xml b/spring-cloud-starter-bus-kafka/pom.xml
index cc2494f..4a1a1c9 100644
--- a/spring-cloud-starter-bus-kafka/pom.xml
+++ b/spring-cloud-starter-bus-kafka/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-bus-parent</artifactId>
-		<version>4.0.0-SNAPSHOT</version>
+		<version>4.0.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 	<artifactId>spring-cloud-starter-bus-kafka</artifactId>
diff --git a/spring-cloud-starter-bus-stream/pom.xml b/spring-cloud-starter-bus-stream/pom.xml
index 46d2318..074f362 100644
--- a/spring-cloud-starter-bus-stream/pom.xml
+++ b/spring-cloud-starter-bus-stream/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-bus-parent</artifactId>
-		<version>4.0.0-SNAPSHOT</version>
+		<version>4.0.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 	<artifactId>spring-cloud-starter-bus-stream</artifactId>