diff --git a/spring-cloud-function-deployer/src/it/bootapp-multi/pom.xml b/spring-cloud-function-deployer/src/it/bootapp-multi/pom.xml
index 96850edb0..b88af35f8 100644
--- a/spring-cloud-function-deployer/src/it/bootapp-multi/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootapp-multi/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/>
 	</parent>
 
diff --git a/spring-cloud-function-deployer/src/it/bootapp-with-javax/pom.xml b/spring-cloud-function-deployer/src/it/bootapp-with-javax/pom.xml
index 3da3e63fe..97811f961 100644
--- a/spring-cloud-function-deployer/src/it/bootapp-with-javax/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootapp-with-javax/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-function-deployer/src/it/bootapp-with-scf/pom.xml b/spring-cloud-function-deployer/src/it/bootapp-with-scf/pom.xml
index 7993859ce..0cebc1fbc 100644
--- a/spring-cloud-function-deployer/src/it/bootapp-with-scf/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootapp-with-scf/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/>
 	</parent>
 
diff --git a/spring-cloud-function-deployer/src/it/bootapp/pom.xml b/spring-cloud-function-deployer/src/it/bootapp/pom.xml
index 2c43c5f7d..6bede1cdd 100644
--- a/spring-cloud-function-deployer/src/it/bootapp/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootapp/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/>
 	</parent>
 
diff --git a/spring-cloud-function-deployer/src/it/bootjar-multi/pom.xml b/spring-cloud-function-deployer/src/it/bootjar-multi/pom.xml
index 01d09e934..e857bff7d 100644
--- a/spring-cloud-function-deployer/src/it/bootjar-multi/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootjar-multi/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/>
 	</parent>
 
diff --git a/spring-cloud-function-deployer/src/it/bootjar/pom.xml b/spring-cloud-function-deployer/src/it/bootjar/pom.xml
index 3c6ca8195..965f0ecd7 100644
--- a/spring-cloud-function-deployer/src/it/bootjar/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootjar/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/>
 	</parent>
 
diff --git a/spring-cloud-function-deployer/src/it/bootjarnostart/pom.xml b/spring-cloud-function-deployer/src/it/bootjarnostart/pom.xml
index 0170b8642..7fae970ed 100644
--- a/spring-cloud-function-deployer/src/it/bootjarnostart/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootjarnostart/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-function-samples/function-sample-aws-custom/pom.xml b/spring-cloud-function-samples/function-sample-aws-custom/pom.xml
index f71bca660..ce9eed786 100644
--- a/spring-cloud-function-samples/function-sample-aws-custom/pom.xml
+++ b/spring-cloud-function-samples/function-sample-aws-custom/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath /> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>io.spring.sample</groupId>
diff --git a/spring-cloud-function-samples/function-sample-aws/pom.xml b/spring-cloud-function-samples/function-sample-aws/pom.xml
index 00a71ae5a..11a605224 100644
--- a/spring-cloud-function-samples/function-sample-aws/pom.xml
+++ b/spring-cloud-function-samples/function-sample-aws/pom.xml
@@ -15,7 +15,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-function-samples/function-sample-azure/pom.xml b/spring-cloud-function-samples/function-sample-azure/pom.xml
index cb584f311..ce1314aa1 100644
--- a/spring-cloud-function-samples/function-sample-azure/pom.xml
+++ b/spring-cloud-function-samples/function-sample-azure/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-function-samples/function-sample-compiler/pom.xml b/spring-cloud-function-samples/function-sample-compiler/pom.xml
index 10e288d06..07cf6fa81 100644
--- a/spring-cloud-function-samples/function-sample-compiler/pom.xml
+++ b/spring-cloud-function-samples/function-sample-compiler/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/>
 	</parent>
 
diff --git a/spring-cloud-function-samples/function-sample-gcp-background/pom.xml b/spring-cloud-function-samples/function-sample-gcp-background/pom.xml
index 011db1c5e..7cedd436c 100644
--- a/spring-cloud-function-samples/function-sample-gcp-background/pom.xml
+++ b/spring-cloud-function-samples/function-sample-gcp-background/pom.xml
@@ -15,7 +15,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-function-samples/function-sample-gcp-http/pom.xml b/spring-cloud-function-samples/function-sample-gcp-http/pom.xml
index 490865506..d617c6262 100644
--- a/spring-cloud-function-samples/function-sample-gcp-http/pom.xml
+++ b/spring-cloud-function-samples/function-sample-gcp-http/pom.xml
@@ -15,7 +15,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-function-samples/function-sample-pof/pom.xml b/spring-cloud-function-samples/function-sample-pof/pom.xml
index 7adca5778..27646ca51 100644
--- a/spring-cloud-function-samples/function-sample-pof/pom.xml
+++ b/spring-cloud-function-samples/function-sample-pof/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/>
 	</parent>
 
diff --git a/spring-cloud-function-samples/function-sample-pojo/pom.xml b/spring-cloud-function-samples/function-sample-pojo/pom.xml
index 06ef53af2..f46e0984c 100644
--- a/spring-cloud-function-samples/function-sample-pojo/pom.xml
+++ b/spring-cloud-function-samples/function-sample-pojo/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/>
 	</parent>
 
diff --git a/spring-cloud-function-samples/function-sample-spring-integration/pom.xml b/spring-cloud-function-samples/function-sample-spring-integration/pom.xml
index 0533fbec6..8f6f5de53 100644
--- a/spring-cloud-function-samples/function-sample-spring-integration/pom.xml
+++ b/spring-cloud-function-samples/function-sample-spring-integration/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-function-samples/function-sample-supplier-exporter/pom.xml b/spring-cloud-function-samples/function-sample-supplier-exporter/pom.xml
index e2bf29d5f..7893e9e34 100644
--- a/spring-cloud-function-samples/function-sample-supplier-exporter/pom.xml
+++ b/spring-cloud-function-samples/function-sample-supplier-exporter/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/>
 	</parent>
 
diff --git a/spring-cloud-function-samples/function-sample-task/pom.xml b/spring-cloud-function-samples/function-sample-task/pom.xml
index f2093fc3e..cc6c6ec67 100644
--- a/spring-cloud-function-samples/function-sample-task/pom.xml
+++ b/spring-cloud-function-samples/function-sample-task/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/>
 	</parent>
 
diff --git a/spring-cloud-function-samples/function-sample/pom.xml b/spring-cloud-function-samples/function-sample/pom.xml
index 0c0275e0e..11d84fa82 100644
--- a/spring-cloud-function-samples/function-sample/pom.xml
+++ b/spring-cloud-function-samples/function-sample/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.0-M3</version>
+		<version>2.4.0-M4</version>
 		<relativePath/>
 	</parent>