diff --git a/benchmarks/pom.xml b/benchmarks/pom.xml
index f57681ce4..b712dfb2c 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>2.2.1.RELEASE</version>
+	<version>2.2.1.BUILD-SNAPSHOT</version>
 	<artifactId>benchmarks</artifactId>
 
 	<properties>
diff --git a/docs/pom.xml b/docs/pom.xml
index 34cd7b85a..cf3165437 100644
--- a/docs/pom.xml
+++ b/docs/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 	</parent>
 	<artifactId>spring-cloud-sleuth-docs</artifactId>
 	<packaging>pom</packaging>
diff --git a/pom.xml b/pom.xml
index accc34807..4a3b5d693 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
 	<modelVersion>4.0.0</modelVersion>
 
 	<artifactId>spring-cloud-sleuth</artifactId>
-	<version>2.2.1.RELEASE</version>
+	<version>2.2.1.BUILD-SNAPSHOT</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>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath/>
 		<!-- lookup parent from repository -->
 	</parent>
@@ -255,17 +255,17 @@
 		<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>2.2.1.RELEASE</spring-cloud-build.version>
-		<spring-cloud-commons.version>2.2.1.RELEASE</spring-cloud-commons.version>
-		<spring-cloud-gateway.version>2.2.1.RELEASE</spring-cloud-gateway.version>
-		<spring-cloud-circuitbreaker.version>1.0.0.RELEASE</spring-cloud-circuitbreaker.version>
-		<spring-cloud-stream.version>Horsham.SR1</spring-cloud-stream.version>
-		<spring-cloud-netflix.version>2.2.1.RELEASE</spring-cloud-netflix.version>
-		<spring-cloud-openfeign.version>2.2.1.RELEASE</spring-cloud-openfeign.version>
+		<spring-cloud-build.version>2.2.1.BUILD-SNAPSHOT</spring-cloud-build.version>
+		<spring-cloud-commons.version>2.2.1.BUILD-SNAPSHOT</spring-cloud-commons.version>
+		<spring-cloud-gateway.version>2.2.1.BUILD-SNAPSHOT</spring-cloud-gateway.version>
+		<spring-cloud-circuitbreaker.version>1.0.1.BUILD-SNAPSHOT</spring-cloud-circuitbreaker.version>
+		<spring-cloud-stream.version>Horsham.RELEASE</spring-cloud-stream.version>
+		<spring-cloud-netflix.version>2.2.1.BUILD-SNAPSHOT</spring-cloud-netflix.version>
+		<spring-cloud-openfeign.version>2.2.1.BUILD-SNAPSHOT</spring-cloud-openfeign.version>
 		<brave.version>5.8.0</brave.version>
 		<spring-security-boot-autoconfigure.version>2.1.7.RELEASE
 		</spring-security-boot-autoconfigure.version>
-		<spring-cloud-aws.version>2.2.1.RELEASE</spring-cloud-aws.version>
+		<spring-cloud-aws.version>2.2.1.BUILD-SNAPSHOT</spring-cloud-aws.version>
 		<disable.nohttp.checks>false</disable.nohttp.checks>
 		<okhttp.version>3.10.0</okhttp.version>
 		<mockwebserver.version>3.10.0</mockwebserver.version>
diff --git a/spring-cloud-sleuth-core/pom.xml b/spring-cloud-sleuth-core/pom.xml
index b4c207484..27caad81e 100644
--- a/spring-cloud-sleuth-core/pom.xml
+++ b/spring-cloud-sleuth-core/pom.xml
@@ -31,7 +31,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-dependencies/.flattened-pom.xml b/spring-cloud-sleuth-dependencies/.flattened-pom.xml
deleted file mode 100644
index 371b3b588..000000000
--- a/spring-cloud-sleuth-dependencies/.flattened-pom.xml
+++ /dev/null
@@ -1,218 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
-  ~ Copyright 2013-2018 the original author or authors.
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~      https://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-  <modelVersion>4.0.0</modelVersion>
-  <parent>
-    <groupId>org.springframework.cloud</groupId>
-    <artifactId>spring-cloud-dependencies-parent</artifactId>
-    <version>2.2.1.RELEASE</version>
-    <relativePath></relativePath>
-  </parent>
-  <groupId>org.springframework.cloud</groupId>
-  <artifactId>spring-cloud-sleuth-dependencies</artifactId>
-  <version>2.2.1.RELEASE</version>
-  <packaging>pom</packaging>
-  <name>spring-cloud-sleuth-dependencies</name>
-  <description>Spring Cloud Sleuth Dependencies</description>
-  <url>https://projects.spring.io/spring-cloud/spring-cloud-sleuth-dependencies/</url>
-  <organization>
-    <name>Pivotal Software, Inc.</name>
-    <url>https://www.spring.io</url>
-  </organization>
-  <licenses>
-    <license>
-      <name>Apache License, Version 2.0</name>
-      <url>https://www.apache.org/licenses/LICENSE-2.0</url>
-      <comments>Copyright 2014-2015 the original author or authors.
-
-				Licensed under the Apache License, Version 2.0 (the "License");
-				you may not use this file except in compliance with the License.
-				You may obtain a copy of the License at
-
-				https://www.apache.org/licenses/LICENSE-2.0
-
-				Unless required by applicable law or agreed to in writing, software
-				distributed under the License is distributed on an "AS IS" BASIS,
-				WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-				implied.
-
-				See the License for the specific language governing permissions and
-				limitations under the License.</comments>
-    </license>
-  </licenses>
-  <developers>
-    <developer>
-      <id>dsyer</id>
-      <name>Dave Syer</name>
-      <email>dsyer at pivotal.io</email>
-      <organization>Pivotal Software, Inc.</organization>
-      <organizationUrl>https://www.spring.io</organizationUrl>
-      <roles>
-        <role>Project lead</role>
-      </roles>
-    </developer>
-    <developer>
-      <id>sgibb</id>
-      <name>Spencer Gibb</name>
-      <email>sgibb at pivotal.io</email>
-      <organization>Pivotal Software, Inc.</organization>
-      <organizationUrl>https://www.spring.io</organizationUrl>
-      <roles>
-        <role>Project lead</role>
-      </roles>
-    </developer>
-  </developers>
-  <scm>
-    <connection>scm:git:git://github.com/spring-cloud/spring-cloud-build.git/spring-cloud-sleuth-dependencies</connection>
-    <developerConnection>scm:git:ssh://git@github.com/spring-cloud/spring-cloud-build.git/spring-cloud-sleuth-dependencies</developerConnection>
-    <url>https://github.com/spring-cloud/spring-cloud-build/spring-cloud-sleuth-dependencies</url>
-  </scm>
-  <distributionManagement>
-    <repository>
-      <id>repo.spring.io</id>
-      <name>Spring Release Repository</name>
-      <url>https://repo.spring.io/libs-release-local</url>
-    </repository>
-    <snapshotRepository>
-      <id>repo.spring.io</id>
-      <name>Spring Snapshot Repository</name>
-      <url>https://repo.spring.io/libs-snapshot-local</url>
-    </snapshotRepository>
-    <site>
-      <id>spring-docs</id>
-      <url>scp://static.springframework.org/var/www/domains/springframework.org/static/htdocs/spring-cloud/docs/spring-cloud-dependencies-parent/2.2.1.RELEASE/spring-cloud-sleuth-dependencies</url>
-    </site>
-    <downloadUrl>https://github.com/spring-cloud</downloadUrl>
-  </distributionManagement>
-  <properties>
-    <brave.opentracing.version>0.35.0</brave.opentracing.version>
-    <grpc.spring.boot.version>3.4.1</grpc.spring.boot.version>
-    <brave.version>5.9.0</brave.version>
-  </properties>
-  <dependencyManagement>
-    <dependencies>
-      <dependency>
-        <groupId>org.springframework.cloud</groupId>
-        <artifactId>spring-cloud-sleuth-core</artifactId>
-        <version>${project.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework.cloud</groupId>
-        <artifactId>spring-cloud-sleuth-zipkin-legacy</artifactId>
-        <version>${project.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework.cloud</groupId>
-        <artifactId>spring-cloud-sleuth-zipkin</artifactId>
-        <version>${project.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework.cloud</groupId>
-        <artifactId>spring-cloud-sleuth-stream</artifactId>
-        <version>${project.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework.cloud</groupId>
-        <artifactId>spring-cloud-sleuth-zipkin-stream</artifactId>
-        <version>${project.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework.cloud</groupId>
-        <artifactId>spring-cloud-starter-zipkin</artifactId>
-        <version>${project.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework.cloud</groupId>
-        <artifactId>spring-cloud-starter-sleuth</artifactId>
-        <version>${project.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>io.zipkin.brave</groupId>
-        <artifactId>brave-bom</artifactId>
-        <version>${brave.version}</version>
-        <type>pom</type>
-        <scope>import</scope>
-      </dependency>
-      <dependency>
-        <groupId>io.opentracing.brave</groupId>
-        <artifactId>brave-opentracing</artifactId>
-        <version>${brave.opentracing.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>io.github.lognet</groupId>
-        <artifactId>grpc-spring-boot-starter</artifactId>
-        <version>${grpc.spring.boot.version}</version>
-      </dependency>
-    </dependencies>
-  </dependencyManagement>
-  <profiles>
-    <profile>
-      <id>spring</id>
-      <repositories>
-        <repository>
-          <releases>
-            <enabled>false</enabled>
-          </releases>
-          <snapshots>
-            <enabled>true</enabled>
-          </snapshots>
-          <id>spring-snapshots</id>
-          <name>Spring Snapshots</name>
-          <url>https://repo.spring.io/libs-snapshot-local</url>
-        </repository>
-        <repository>
-          <snapshots>
-            <enabled>false</enabled>
-          </snapshots>
-          <id>spring-milestones</id>
-          <name>Spring Milestones</name>
-          <url>https://repo.spring.io/libs-milestone-local</url>
-        </repository>
-        <repository>
-          <snapshots>
-            <enabled>false</enabled>
-          </snapshots>
-          <id>spring-releases</id>
-          <name>Spring Releases</name>
-          <url>https://repo.spring.io/release</url>
-        </repository>
-      </repositories>
-      <pluginRepositories>
-        <pluginRepository>
-          <releases>
-            <enabled>false</enabled>
-          </releases>
-          <snapshots>
-            <enabled>true</enabled>
-          </snapshots>
-          <id>spring-snapshots</id>
-          <name>Spring Snapshots</name>
-          <url>https://repo.spring.io/libs-snapshot-local</url>
-        </pluginRepository>
-        <pluginRepository>
-          <snapshots>
-            <enabled>false</enabled>
-          </snapshots>
-          <id>spring-milestones</id>
-          <name>Spring Milestones</name>
-          <url>https://repo.spring.io/libs-milestone-local</url>
-        </pluginRepository>
-      </pluginRepositories>
-    </profile>
-  </profiles>
-</project>
diff --git a/spring-cloud-sleuth-dependencies/pom.xml b/spring-cloud-sleuth-dependencies/pom.xml
index ae6267c56..8d19db17b 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>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath/>
 	</parent>
 	<artifactId>spring-cloud-sleuth-dependencies</artifactId>
-	<version>2.2.1.RELEASE</version>
+	<version>2.2.1.BUILD-SNAPSHOT</version>
 	<packaging>pom</packaging>
 	<name>spring-cloud-sleuth-dependencies</name>
 	<description>Spring Cloud Sleuth Dependencies</description>
diff --git a/spring-cloud-sleuth-samples/pom.xml b/spring-cloud-sleuth-samples/pom.xml
index c4915cc47..ab6477d76 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>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</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 fedc1db8d..35d09eb66 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>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</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 521dbf462..97d1cbf62 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>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-ribbon/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-ribbon/pom.xml
index b999eb4e4..b1cbdc356 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-ribbon/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-ribbon/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</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 2056f202e..532539228 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>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</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 0e93b88be..8c3832e25 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>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</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 12364a82a..eea235557 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>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</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 d94231100..77866a0e5 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>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-zipkin/pom.xml b/spring-cloud-sleuth-zipkin/pom.xml
index eec71d473..66f23fa4d 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>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-starter-sleuth/pom.xml b/spring-cloud-starter-sleuth/pom.xml
index 905c396fe..8e20d0e1f 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>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 	<artifactId>spring-cloud-starter-sleuth</artifactId>
diff --git a/spring-cloud-starter-zipkin/pom.xml b/spring-cloud-starter-zipkin/pom.xml
index 70a207540..344633e49 100644
--- a/spring-cloud-starter-zipkin/pom.xml
+++ b/spring-cloud-starter-zipkin/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 	<artifactId>spring-cloud-starter-zipkin</artifactId>
diff --git a/tests/pom.xml b/tests/pom.xml
index 246ee92ed..9b578f3b5 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>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/spring-cloud-sleuth-instrumentation-async-tests/pom.xml b/tests/spring-cloud-sleuth-instrumentation-async-tests/pom.xml
index ef63a0841..b38c0a1aa 100644
--- a/tests/spring-cloud-sleuth-instrumentation-async-tests/pom.xml
+++ b/tests/spring-cloud-sleuth-instrumentation-async-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/spring-cloud-sleuth-instrumentation-feign-tests/pom.xml b/tests/spring-cloud-sleuth-instrumentation-feign-tests/pom.xml
index a063f74b1..431693758 100644
--- a/tests/spring-cloud-sleuth-instrumentation-feign-tests/pom.xml
+++ b/tests/spring-cloud-sleuth-instrumentation-feign-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/spring-cloud-sleuth-instrumentation-grpc-tests/pom.xml b/tests/spring-cloud-sleuth-instrumentation-grpc-tests/pom.xml
index d5d297721..f6ff773ca 100644
--- a/tests/spring-cloud-sleuth-instrumentation-grpc-tests/pom.xml
+++ b/tests/spring-cloud-sleuth-instrumentation-grpc-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/spring-cloud-sleuth-instrumentation-hystrix-tests/pom.xml b/tests/spring-cloud-sleuth-instrumentation-hystrix-tests/pom.xml
index 467b05750..a4621e525 100644
--- a/tests/spring-cloud-sleuth-instrumentation-hystrix-tests/pom.xml
+++ b/tests/spring-cloud-sleuth-instrumentation-hystrix-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/spring-cloud-sleuth-instrumentation-lettuce-tests/pom.xml b/tests/spring-cloud-sleuth-instrumentation-lettuce-tests/pom.xml
index 3311f2843..76840943a 100644
--- a/tests/spring-cloud-sleuth-instrumentation-lettuce-tests/pom.xml
+++ b/tests/spring-cloud-sleuth-instrumentation-lettuce-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/spring-cloud-sleuth-instrumentation-messaging-tests/pom.xml b/tests/spring-cloud-sleuth-instrumentation-messaging-tests/pom.xml
index fe9db2347..e2efc3e18 100644
--- a/tests/spring-cloud-sleuth-instrumentation-messaging-tests/pom.xml
+++ b/tests/spring-cloud-sleuth-instrumentation-messaging-tests/pom.xml
@@ -31,7 +31,7 @@ https://www.w3.org/2001/XMLSchema-instance ">
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/spring-cloud-sleuth-instrumentation-mvc-tests/pom.xml b/tests/spring-cloud-sleuth-instrumentation-mvc-tests/pom.xml
index 7e4f626c7..195a95aa1 100644
--- a/tests/spring-cloud-sleuth-instrumentation-mvc-tests/pom.xml
+++ b/tests/spring-cloud-sleuth-instrumentation-mvc-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/spring-cloud-sleuth-instrumentation-reactor-tests/pom.xml b/tests/spring-cloud-sleuth-instrumentation-reactor-tests/pom.xml
index 15194b464..331467992 100644
--- a/tests/spring-cloud-sleuth-instrumentation-reactor-tests/pom.xml
+++ b/tests/spring-cloud-sleuth-instrumentation-reactor-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/spring-cloud-sleuth-instrumentation-rpc-tests/pom.xml b/tests/spring-cloud-sleuth-instrumentation-rpc-tests/pom.xml
index ca490db93..b608c11e2 100644
--- a/tests/spring-cloud-sleuth-instrumentation-rpc-tests/pom.xml
+++ b/tests/spring-cloud-sleuth-instrumentation-rpc-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/spring-cloud-sleuth-instrumentation-rxjava-tests/pom.xml b/tests/spring-cloud-sleuth-instrumentation-rxjava-tests/pom.xml
index 3d57d6406..686c3bf6a 100644
--- a/tests/spring-cloud-sleuth-instrumentation-rxjava-tests/pom.xml
+++ b/tests/spring-cloud-sleuth-instrumentation-rxjava-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/spring-cloud-sleuth-instrumentation-scheduling-tests/pom.xml b/tests/spring-cloud-sleuth-instrumentation-scheduling-tests/pom.xml
index 3f19ca129..1d1d9c5b0 100644
--- a/tests/spring-cloud-sleuth-instrumentation-scheduling-tests/pom.xml
+++ b/tests/spring-cloud-sleuth-instrumentation-scheduling-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/spring-cloud-sleuth-instrumentation-webflux-tests/pom.xml b/tests/spring-cloud-sleuth-instrumentation-webflux-tests/pom.xml
index 8dc73d674..0ac79c93a 100644
--- a/tests/spring-cloud-sleuth-instrumentation-webflux-tests/pom.xml
+++ b/tests/spring-cloud-sleuth-instrumentation-webflux-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/tests/spring-cloud-sleuth-instrumentation-zuul-tests/pom.xml b/tests/spring-cloud-sleuth-instrumentation-zuul-tests/pom.xml
index d49031804..e18e055c7 100644
--- a/tests/spring-cloud-sleuth-instrumentation-zuul-tests/pom.xml
+++ b/tests/spring-cloud-sleuth-instrumentation-zuul-tests/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-tests</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.1.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>