diff --git a/docs/pom.xml b/docs/pom.xml
index 09a131b8..03a10b6f 100644
--- a/docs/pom.xml
+++ b/docs/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 	</parent>
 	<artifactId>spring-cloud-gateway-docs</artifactId>
 	<packaging>jar</packaging>
diff --git a/pom.xml b/pom.xml
index 93d4cabc..f896ca03 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
 	<groupId>org.springframework.cloud</groupId>
 	<artifactId>spring-cloud-gateway</artifactId>
-	<version>3.1.0-SNAPSHOT</version>
+	<version>3.1.0-M1</version>
 	<packaging>pom</packaging>
 
 	<name>Spring Cloud Gateway</name>
@@ -15,7 +15,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath/>
 	</parent>
 	<scm>
@@ -54,8 +54,8 @@
 		<blockhound.version>1.0.6.RELEASE</blockhound.version>
 		<java.version>1.8</java.version>
 		<junit-pioneer.version>1.0.0</junit-pioneer.version>
-		<spring-cloud-circuitbreaker.version>2.1.0-SNAPSHOT</spring-cloud-circuitbreaker.version>
-		<spring-cloud-commons.version>3.1.0-SNAPSHOT</spring-cloud-commons.version>
+		<spring-cloud-circuitbreaker.version>2.1.0-M1</spring-cloud-circuitbreaker.version>
+		<spring-cloud-commons.version>3.1.0-M1</spring-cloud-commons.version>
 		<testcontainers.version>1.15.1</testcontainers.version>
 	</properties>
 
diff --git a/spring-cloud-gateway-dependencies/pom.xml b/spring-cloud-gateway-dependencies/pom.xml
index 4677329d..3ff7f95e 100644
--- a/spring-cloud-gateway-dependencies/pom.xml
+++ b/spring-cloud-gateway-dependencies/pom.xml
@@ -6,12 +6,12 @@
 	<parent>
 		<artifactId>spring-cloud-dependencies-parent</artifactId>
 		<groupId>org.springframework.cloud</groupId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath/>
 	</parent>
 
 	<artifactId>spring-cloud-gateway-dependencies</artifactId>
-	<version>3.1.0-SNAPSHOT</version>
+	<version>3.1.0-M1</version>
 	<packaging>pom</packaging>
 
 	<name>spring-cloud-gateway-dependencies</name>
diff --git a/spring-cloud-gateway-integration-tests/mvc-failure-analyzer/pom.xml b/spring-cloud-gateway-integration-tests/mvc-failure-analyzer/pom.xml
index 332a54ff..90009bc3 100644
--- a/spring-cloud-gateway-integration-tests/mvc-failure-analyzer/pom.xml
+++ b/spring-cloud-gateway-integration-tests/mvc-failure-analyzer/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway-integration-tests</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-gateway-integration-tests/pom.xml b/spring-cloud-gateway-integration-tests/pom.xml
index 6e396521..2a564385 100644
--- a/spring-cloud-gateway-integration-tests/pom.xml
+++ b/spring-cloud-gateway-integration-tests/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	
diff --git a/spring-cloud-gateway-mvc/pom.xml b/spring-cloud-gateway-mvc/pom.xml
index 57249084..afc0b519 100644
--- a/spring-cloud-gateway-mvc/pom.xml
+++ b/spring-cloud-gateway-mvc/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-gateway-sample/pom.xml b/spring-cloud-gateway-sample/pom.xml
index 2989b249..4dc4b16f 100644
--- a/spring-cloud-gateway-sample/pom.xml
+++ b/spring-cloud-gateway-sample/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-gateway-server/pom.xml b/spring-cloud-gateway-server/pom.xml
index 2c0bcb35..69e41ca6 100644
--- a/spring-cloud-gateway-server/pom.xml
+++ b/spring-cloud-gateway-server/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	<artifactId>spring-cloud-gateway-server</artifactId>
diff --git a/spring-cloud-gateway-webflux/pom.xml b/spring-cloud-gateway-webflux/pom.xml
index 1d0b7481..9245ca71 100644
--- a/spring-cloud-gateway-webflux/pom.xml
+++ b/spring-cloud-gateway-webflux/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-starter-gateway/pom.xml b/spring-cloud-starter-gateway/pom.xml
index fe287029..71d128e7 100644
--- a/spring-cloud-starter-gateway/pom.xml
+++ b/spring-cloud-starter-gateway/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	<artifactId>spring-cloud-starter-gateway</artifactId>