diff --git a/guides/gs-contract-rest/complete/contract-rest-client/pom.xml b/guides/gs-contract-rest/complete/contract-rest-client/pom.xml
index 5428ac9a05..2c51a29763 100644
--- a/guides/gs-contract-rest/complete/contract-rest-client/pom.xml
+++ b/guides/gs-contract-rest/complete/contract-rest-client/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.0.BUILD-SNAPSHOT</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/guides/gs-contract-rest/complete/contract-rest-service/pom.xml b/guides/gs-contract-rest/complete/contract-rest-service/pom.xml
index c800949d77..ada2339732 100644
--- a/guides/gs-contract-rest/complete/contract-rest-service/pom.xml
+++ b/guides/gs-contract-rest/complete/contract-rest-service/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.0.BUILD-SNAPSHOT</version>
 		<relativePath /> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/guides/gs-contract-rest/initial/contract-rest-client/pom.xml b/guides/gs-contract-rest/initial/contract-rest-client/pom.xml
index 7154572cc9..c88411e9ff 100644
--- a/guides/gs-contract-rest/initial/contract-rest-client/pom.xml
+++ b/guides/gs-contract-rest/initial/contract-rest-client/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.0.BUILD-SNAPSHOT</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/guides/gs-contract-rest/initial/contract-rest-service/pom.xml b/guides/gs-contract-rest/initial/contract-rest-service/pom.xml
index a4330ade9f..50ff5f3598 100644
--- a/guides/gs-contract-rest/initial/contract-rest-service/pom.xml
+++ b/guides/gs-contract-rest/initial/contract-rest-service/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.0.BUILD-SNAPSHOT</version>
 		<relativePath /> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/samples/wiremock-jetty/pom.xml b/samples/wiremock-jetty/pom.xml
index 9cb7ad9f38..30533c0000 100644
--- a/samples/wiremock-jetty/pom.xml
+++ b/samples/wiremock-jetty/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.0.BUILD-SNAPSHOT</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/samples/wiremock-native/pom.xml b/samples/wiremock-native/pom.xml
index 4a88ca8045..9e66fb47fa 100644
--- a/samples/wiremock-native/pom.xml
+++ b/samples/wiremock-native/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.0.BUILD-SNAPSHOT</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/samples/wiremock-tomcat/pom.xml b/samples/wiremock-tomcat/pom.xml
index 99c5517a35..5fe916ec00 100644
--- a/samples/wiremock-tomcat/pom.xml
+++ b/samples/wiremock-tomcat/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.0.BUILD-SNAPSHOT</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/samples/wiremock-undertow-ssl/pom.xml b/samples/wiremock-undertow-ssl/pom.xml
index cf9dee4bbb..1bb46b9c54 100644
--- a/samples/wiremock-undertow-ssl/pom.xml
+++ b/samples/wiremock-undertow-ssl/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.0.BUILD-SNAPSHOT</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/samples/wiremock-undertow/pom.xml b/samples/wiremock-undertow/pom.xml
index 663f9be983..5e71130a57 100644
--- a/samples/wiremock-undertow/pom.xml
+++ b/samples/wiremock-undertow/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.0.BUILD-SNAPSHOT</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/samples/wiremock/pom.xml b/samples/wiremock/pom.xml
index 46e90155e2..93ad01e535 100644
--- a/samples/wiremock/pom.xml
+++ b/samples/wiremock/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.0.BUILD-SNAPSHOT</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/scenarioProject/gradle.properties b/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/scenarioProject/gradle.properties
index 56badfcf68..e3b40d22ec 100644
--- a/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/scenarioProject/gradle.properties
+++ b/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/scenarioProject/gradle.properties
@@ -16,5 +16,5 @@
 wiremockVersion=2.26.3
 jsonAssertVersion=0.4.13
 verifierVersion=3.0.0.BUILD-SNAPSHOT
-bootVersion=2.3.0.M4
+bootVersion=2.3.0.BUILD-SNAPSHOT
 groovyVersion=2.4.17
diff --git a/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/scenarioProjectKotlin/gradle.properties b/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/scenarioProjectKotlin/gradle.properties
index 56badfcf68..e3b40d22ec 100644
--- a/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/scenarioProjectKotlin/gradle.properties
+++ b/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/scenarioProjectKotlin/gradle.properties
@@ -16,5 +16,5 @@
 wiremockVersion=2.26.3
 jsonAssertVersion=0.4.13
 verifierVersion=3.0.0.BUILD-SNAPSHOT
-bootVersion=2.3.0.M4
+bootVersion=2.3.0.BUILD-SNAPSHOT
 groovyVersion=2.4.17