diff --git a/spring-boot-dependencies/pom.xml b/spring-boot-dependencies/pom.xml
index 58da1912560..55ac5c0a562 100644
--- a/spring-boot-dependencies/pom.xml
+++ b/spring-boot-dependencies/pom.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.springframework.boot</groupId>
 	<artifactId>spring-boot-dependencies</artifactId>
@@ -3049,7 +3048,7 @@
 				<plugin>
 					<groupId>org.springframework.boot</groupId>
 					<artifactId>spring-boot-maven-plugin</artifactId>
-					<version>1.5.20.BUILD-SNAPSHOT</version>
+					<version>1.5.21.BUILD-SNAPSHOT</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
@@ -3270,4 +3269,4 @@
 			<id>integration-test</id>
 		</profile>
 	</profiles>
-</project>
+</project>
\ No newline at end of file
diff --git a/spring-boot-samples/spring-boot-sample-actuator/build.gradle b/spring-boot-samples/spring-boot-sample-actuator/build.gradle
index 1f754b3aa9d..58890bfcb3c 100644
--- a/spring-boot-samples/spring-boot-sample-actuator/build.gradle
+++ b/spring-boot-samples/spring-boot-sample-actuator/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
 	ext {
-		springBootVersion = '1.5.20.BUILD-SNAPSHOT'
+		springBootVersion = '1.5.21.BUILD-SNAPSHOT'
 	}
 	repositories {
 		// NOTE: You should declare only repositories that you need here
diff --git a/spring-boot-samples/spring-boot-sample-ant/build.xml b/spring-boot-samples/spring-boot-sample-ant/build.xml
index c5cb256a77e..83270396937 100644
--- a/spring-boot-samples/spring-boot-sample-ant/build.xml
+++ b/spring-boot-samples/spring-boot-sample-ant/build.xml
@@ -11,7 +11,7 @@
 		actual jars). Run with '$ java -jar target/*.jar'.
 	</description>
 
-	<property name="spring-boot.version" value="1.5.20.BUILD-SNAPSHOT" />
+	<property name="spring-boot.version" value="1.5.21.BUILD-SNAPSHOT" />
 	<property name="lib.dir" location="${basedir}/target/lib" />
 	<property name="start-class" value="sample.ant.SampleAntApplication" />
 
diff --git a/spring-boot-samples/spring-boot-sample-ant/pom.xml b/spring-boot-samples/spring-boot-sample-ant/pom.xml
index 9e27cab9884..515eccd8f26 100644
--- a/spring-boot-samples/spring-boot-sample-ant/pom.xml
+++ b/spring-boot-samples/spring-boot-sample-ant/pom.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<!-- This POM is just to trigger the Ant/Ivy sample from Maven and to test -->
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
@@ -62,8 +61,8 @@
 						<phase>package</phase>
 						<configuration>
 							<target>
-								<property name="build.compiler" value="extJavac" />
-								<ant dir="${basedir}" />
+								<property name="build.compiler" value="extJavac"/>
+								<ant dir="${basedir}"/>
 							</target>
 						</configuration>
 						<goals>
@@ -85,7 +84,7 @@
 					<dependency>
 						<groupId>org.springframework.boot</groupId>
 						<artifactId>spring-boot-antlib</artifactId>
-						<version>1.5.20.BUILD-SNAPSHOT</version>
+						<version>1.5.21.BUILD-SNAPSHOT</version>
 					</dependency>
 				</dependencies>
 			</plugin>
@@ -103,4 +102,4 @@
 			</plugin>
 		</plugins>
 	</build>
-</project>
+</project>
\ No newline at end of file
diff --git a/spring-boot-samples/spring-boot-sample-logback/build.gradle b/spring-boot-samples/spring-boot-sample-logback/build.gradle
index 75c4e2e9f89..c08356776f7 100644
--- a/spring-boot-samples/spring-boot-sample-logback/build.gradle
+++ b/spring-boot-samples/spring-boot-sample-logback/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
 	ext {
-		springBootVersion = '1.5.20.BUILD-SNAPSHOT'
+		springBootVersion = '1.5.21.BUILD-SNAPSHOT'
 	}
 	repositories {
 		// NOTE: You should declare only repositories that you need here
diff --git a/spring-boot-samples/spring-boot-sample-profile/build.gradle b/spring-boot-samples/spring-boot-sample-profile/build.gradle
index 3efa6f65e49..f9a9b43ef34 100644
--- a/spring-boot-samples/spring-boot-sample-profile/build.gradle
+++ b/spring-boot-samples/spring-boot-sample-profile/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
 	ext {
-		springBootVersion = '1.5.20.BUILD-SNAPSHOT'
+		springBootVersion = '1.5.21.BUILD-SNAPSHOT'
 	}
 	repositories {
 		// NOTE: You should declare only repositories that you need here
diff --git a/spring-boot-samples/spring-boot-sample-simple/build.gradle b/spring-boot-samples/spring-boot-sample-simple/build.gradle
index 75c4e2e9f89..c08356776f7 100644
--- a/spring-boot-samples/spring-boot-sample-simple/build.gradle
+++ b/spring-boot-samples/spring-boot-sample-simple/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
 	ext {
-		springBootVersion = '1.5.20.BUILD-SNAPSHOT'
+		springBootVersion = '1.5.21.BUILD-SNAPSHOT'
 	}
 	repositories {
 		// NOTE: You should declare only repositories that you need here
diff --git a/spring-boot-samples/spring-boot-sample-web-static/build.gradle b/spring-boot-samples/spring-boot-sample-web-static/build.gradle
index 239239f5c62..592abd4cc50 100644
--- a/spring-boot-samples/spring-boot-sample-web-static/build.gradle
+++ b/spring-boot-samples/spring-boot-sample-web-static/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
 	ext {
-		springBootVersion = '1.5.20.BUILD-SNAPSHOT'
+		springBootVersion = '1.5.21.BUILD-SNAPSHOT'
 	}
 	repositories {
 		// NOTE: You should declare only repositories that you need here
diff --git a/spring-boot-samples/spring-boot-sample-web-ui/build.gradle b/spring-boot-samples/spring-boot-sample-web-ui/build.gradle
index 771c1c69c0f..1a332995324 100644
--- a/spring-boot-samples/spring-boot-sample-web-ui/build.gradle
+++ b/spring-boot-samples/spring-boot-sample-web-ui/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
 	ext {
-		springBootVersion = '1.5.20.BUILD-SNAPSHOT'
+		springBootVersion = '1.5.21.BUILD-SNAPSHOT'
 		springLoadedVersion = '1.2.4.RELEASE'
 	}
 	repositories {
diff --git a/spring-boot-starters/spring-boot-starter-parent/pom.xml b/spring-boot-starters/spring-boot-starter-parent/pom.xml
index a8c653411fb..7e1dc1a6aca 100644
--- a/spring-boot-starters/spring-boot-starter-parent/pom.xml
+++ b/spring-boot-starters/spring-boot-starter-parent/pom.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>org.springframework.boot</groupId>
@@ -171,7 +170,7 @@
 						<dependency>
 							<groupId>org.springframework.boot</groupId>
 							<artifactId>spring-boot-maven-plugin</artifactId>
-							<version>1.5.20.BUILD-SNAPSHOT</version>
+							<version>1.5.21.BUILD-SNAPSHOT</version>
 						</dependency>
 					</dependencies>
 					<configuration>
@@ -205,7 +204,7 @@
 									<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
 										<resource>META-INF/spring.schemas</resource>
 									</transformer>
-									<transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
+									<transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
 									<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
 										<mainClass>${start-class}</mainClass>
 									</transformer>
@@ -217,4 +216,4 @@
 			</plugins>
 		</pluginManagement>
 	</build>
-</project>
+</project>
\ No newline at end of file