diff --git a/benchmarks/pom.xml b/benchmarks/pom.xml
index 46bc51e23..4a751c592 100644
--- a/benchmarks/pom.xml
+++ b/benchmarks/pom.xml
@@ -22,7 +22,7 @@
 	<name>Benchmarks</name>
 	<description>Benchmarks (JMH)</description>
 	<groupId>org.springframework.cloud</groupId>
-	<version>3.1.0-SNAPSHOT</version>
+	<version>3.1.0-M1</version>
 	<artifactId>benchmarks</artifactId>
 
 	<parent>
diff --git a/docs/pom.xml b/docs/pom.xml
index cee360719..f80b99e15 100644
--- a/docs/pom.xml
+++ b/docs/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 	</parent>
 	<artifactId>spring-cloud-sleuth-docs</artifactId>
 	<packaging>jar</packaging>
diff --git a/pom.xml b/pom.xml
index 31bcb1582..366f81030 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
 	<modelVersion>4.0.0</modelVersion>
 
 	<artifactId>spring-cloud-sleuth</artifactId>
-	<version>3.1.0-SNAPSHOT</version>
+	<version>3.1.0-M1</version>
 	<packaging>pom</packaging>
 	<name>Spring Cloud Sleuth</name>
 	<description>Spring Cloud Sleuth</description>
@@ -29,7 +29,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath/>
 		<!-- lookup parent from repository -->
 	</parent>
@@ -62,16 +62,16 @@
 		<maven.compiler.source>1.8</maven.compiler.source>
 		<maven.compiler.testTarget>1.8</maven.compiler.testTarget>
 		<maven.compiler.testSource>1.8</maven.compiler.testSource>
-		<spring-cloud-build.version>3.1.0-SNAPSHOT</spring-cloud-build.version>
-		<spring-cloud-commons.version>3.1.0-SNAPSHOT</spring-cloud-commons.version>
-		<spring-cloud-gateway.version>3.1.0-SNAPSHOT</spring-cloud-gateway.version>
-		<spring-cloud-config.version>3.1.0-SNAPSHOT</spring-cloud-config.version>
-		<spring-cloud-circuitbreaker.version>2.1.0-SNAPSHOT</spring-cloud-circuitbreaker.version>
-		<spring-cloud-stream.version>3.2.0-SNAPSHOT</spring-cloud-stream.version>
-		<spring-cloud-function.version>3.2.0-SNAPSHOT</spring-cloud-function.version>
-		<spring-cloud-netflix.version>3.1.0-SNAPSHOT</spring-cloud-netflix.version>
-		<spring-cloud-openfeign.version>3.1.0-SNAPSHOT</spring-cloud-openfeign.version>
-		<spring-cloud-task.version>2.4.0-SNAPSHOT</spring-cloud-task.version>
+		<spring-cloud-build.version>3.1.0-M1</spring-cloud-build.version>
+		<spring-cloud-commons.version>3.1.0-M1</spring-cloud-commons.version>
+		<spring-cloud-gateway.version>3.1.0-M1</spring-cloud-gateway.version>
+		<spring-cloud-config.version>3.1.0-M1</spring-cloud-config.version>
+		<spring-cloud-circuitbreaker.version>2.1.0-M1</spring-cloud-circuitbreaker.version>
+		<spring-cloud-stream.version>3.2.0-M1</spring-cloud-stream.version>
+		<spring-cloud-function.version>3.2.0-M1</spring-cloud-function.version>
+		<spring-cloud-netflix.version>3.1.0-M1</spring-cloud-netflix.version>
+		<spring-cloud-openfeign.version>3.1.0-M1</spring-cloud-openfeign.version>
+		<spring-cloud-task.version>2.4.0-M1</spring-cloud-task.version>
 		<spring-cloud-deployer.version>2.5.1</spring-cloud-deployer.version>
 		<brave.version>5.13.2</brave.version>
 		<opentracing.version>0.32.0</opentracing.version>
diff --git a/spring-cloud-sleuth-api/pom.xml b/spring-cloud-sleuth-api/pom.xml
index 59766a458..1c86b088b 100644
--- a/spring-cloud-sleuth-api/pom.xml
+++ b/spring-cloud-sleuth-api/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-autoconfigure/pom.xml b/spring-cloud-sleuth-autoconfigure/pom.xml
index ba19af7b3..2258aafe3 100644
--- a/spring-cloud-sleuth-autoconfigure/pom.xml
+++ b/spring-cloud-sleuth-autoconfigure/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-brave/pom.xml b/spring-cloud-sleuth-brave/pom.xml
index 1069e4dbe..5242ac83d 100644
--- a/spring-cloud-sleuth-brave/pom.xml
+++ b/spring-cloud-sleuth-brave/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-dependencies/pom.xml b/spring-cloud-sleuth-dependencies/pom.xml
index 63c510721..1f959d9e2 100644
--- a/spring-cloud-sleuth-dependencies/pom.xml
+++ b/spring-cloud-sleuth-dependencies/pom.xml
@@ -22,11 +22,11 @@
 	<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-sleuth-dependencies</artifactId>
-	<version>3.1.0-SNAPSHOT</version>
+	<version>3.1.0-M1</version>
 	<packaging>pom</packaging>
 	<name>spring-cloud-sleuth-dependencies</name>
 	<description>Spring Cloud Sleuth Dependencies</description>
diff --git a/spring-cloud-sleuth-instrumentation/pom.xml b/spring-cloud-sleuth-instrumentation/pom.xml
index f5d44ce63..a0b13eaa4 100644
--- a/spring-cloud-sleuth-instrumentation/pom.xml
+++ b/spring-cloud-sleuth-instrumentation/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/pom.xml b/spring-cloud-sleuth-samples/pom.xml
index db7df8acb..6a3bb1fc4 100644
--- a/spring-cloud-sleuth-samples/pom.xml
+++ b/spring-cloud-sleuth-samples/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-feign/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-feign/pom.xml
index 14012ee1d..3238185af 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-feign/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-feign/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/pom.xml
index 75b4574a8..85881be53 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-test-core/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-test-core/pom.xml
index 438700c2d..9127507ea 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-test-core/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-test-core/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-websocket/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-websocket/pom.xml
index 2114093a3..799b34c9c 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-websocket/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-websocket/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin/pom.xml
index 85e6b2855..f2c100c9a 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample/pom.xml
index e4bb17d81..9eac1daa4 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-zipkin/pom.xml b/spring-cloud-sleuth-zipkin/pom.xml
index 69642bfdb..6e1ece1e9 100644
--- a/spring-cloud-sleuth-zipkin/pom.xml
+++ b/spring-cloud-sleuth-zipkin/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-starter-sleuth/pom.xml b/spring-cloud-starter-sleuth/pom.xml
index 7cf9452ec..b24f27f72 100644
--- a/spring-cloud-starter-sleuth/pom.xml
+++ b/spring-cloud-starter-sleuth/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 	<artifactId>spring-cloud-starter-sleuth</artifactId>
diff --git a/tests/brave/pom.xml b/tests/brave/pom.xml
index 8171631ef..92b769c63 100644
--- a/tests/brave/pom.xml
+++ b/tests/brave/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-actuator-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-actuator-tests/pom.xml
index d678bf9cb..91704873e 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-actuator-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-actuator-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-annotation-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-annotation-tests/pom.xml
index 2c12a1fcb..09f614df0 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-annotation-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-annotation-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-async-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-async-tests/pom.xml
index 7bf3f3a3a..79a6bee4d 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-async-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-async-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-baggage-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-baggage-tests/pom.xml
index e2a5b6625..09d813272 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-baggage-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-baggage-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-batch-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-batch-tests/pom.xml
index 6c8ee8316..b6665afd4 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-batch-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-batch-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-circuitbreaker-reactive-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-circuitbreaker-reactive-tests/pom.xml
index 43d9e1ab6..d9d6d13b5 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-circuitbreaker-reactive-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-circuitbreaker-reactive-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-circuitbreaker-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-circuitbreaker-tests/pom.xml
index 0e29dd8db..df80dd9af 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-circuitbreaker-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-circuitbreaker-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-config-server-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-config-server-tests/pom.xml
index 6d6f4eb10..bdd49f185 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-config-server-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-config-server-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-feign-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-feign-tests/pom.xml
index 7d7134fa4..52f99af98 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-feign-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-feign-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-gateway-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-gateway-tests/pom.xml
index b648e3bc8..1522b6fac 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-gateway-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-gateway-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-grpc-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-grpc-tests/pom.xml
index 5e9c81e38..6384755a7 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-grpc-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-grpc-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-jdbc-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-jdbc-tests/pom.xml
index 259be99a3..756ce402e 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-jdbc-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-jdbc-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-kafka-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-kafka-tests/pom.xml
index 5692dd97b..f60da6ea9 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-kafka-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-kafka-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-kotlin-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-kotlin-tests/pom.xml
index 61014adcc..f0af1b02a 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-kotlin-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-kotlin-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-lettuce-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-lettuce-tests/pom.xml
index bf14afc5c..ab44856a8 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-lettuce-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-lettuce-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-messaging-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-messaging-tests/pom.xml
index fe4a8b232..bf63b2bc2 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-messaging-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-messaging-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-mvc-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-mvc-tests/pom.xml
index 3c0302cb6..f39cc914d 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-mvc-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-mvc-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-quartz-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-quartz-tests/pom.xml
index 9e48b22f7..847bbdcda 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-quartz-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-quartz-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-r2dbc-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-r2dbc-tests/pom.xml
index f4c32b7f3..100dce33e 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-r2dbc-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-r2dbc-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-reactor-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-reactor-tests/pom.xml
index c1e357579..f1adb029e 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-reactor-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-reactor-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-rsocket-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-rsocket-tests/pom.xml
index 6c4d6bed6..91bd1a653 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-rsocket-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-rsocket-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-rxjava-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-rxjava-tests/pom.xml
index 0bca13699..cacc5eb09 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-rxjava-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-rxjava-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-scheduling-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-scheduling-tests/pom.xml
index 45d3de776..6b19e88c5 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-scheduling-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-scheduling-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-task-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-task-tests/pom.xml
index 667d54797..01ee28d95 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-task-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-task-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-instrumentation-webflux-tests/pom.xml b/tests/brave/spring-cloud-sleuth-instrumentation-webflux-tests/pom.xml
index 80245b044..e9b788e2c 100644
--- a/tests/brave/spring-cloud-sleuth-instrumentation-webflux-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-instrumentation-webflux-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/brave/spring-cloud-sleuth-zipkin-tests/pom.xml b/tests/brave/spring-cloud-sleuth-zipkin-tests/pom.xml
index e55f844fd..4c19ade6d 100644
--- a/tests/brave/spring-cloud-sleuth-zipkin-tests/pom.xml
+++ b/tests/brave/spring-cloud-sleuth-zipkin-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests-brave</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/common/pom.xml b/tests/common/pom.xml
index d6b158acd..b37292237 100644
--- a/tests/common/pom.xml
+++ b/tests/common/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/pom.xml b/tests/pom.xml
index 04b8b898f..706b3206f 100644
--- a/tests/pom.xml
+++ b/tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M1</version>
 		<relativePath>..</relativePath>
 	</parent>