diff --git a/samples/rest-assured/build.gradle b/samples/rest-assured/build.gradle
index 73041777..a9a64f49 100644
--- a/samples/rest-assured/build.gradle
+++ b/samples/rest-assured/build.gradle
@@ -3,7 +3,7 @@ buildscript {
 		mavenCentral()
 	}
 	dependencies {
-		classpath 'org.springframework.boot:spring-boot-gradle-plugin:1.4.1.RELEASE'
+		classpath 'org.springframework.boot:spring-boot-gradle-plugin:1.5.3.RELEASE'
 	}
 }
 
diff --git a/samples/rest-notes-slate/build.gradle b/samples/rest-notes-slate/build.gradle
index 2911c288..fc3f7c5c 100644
--- a/samples/rest-notes-slate/build.gradle
+++ b/samples/rest-notes-slate/build.gradle
@@ -3,7 +3,7 @@ buildscript {
 		mavenCentral()
 	}
 	dependencies {
-		classpath 'org.springframework.boot:spring-boot-gradle-plugin:1.4.1.RELEASE'
+		classpath 'org.springframework.boot:spring-boot-gradle-plugin:1.5.3.RELEASE'
 	}
 }
 
diff --git a/samples/rest-notes-spring-data-rest/pom.xml b/samples/rest-notes-spring-data-rest/pom.xml
index 3e6285ba..a9362d29 100644
--- a/samples/rest-notes-spring-data-rest/pom.xml
+++ b/samples/rest-notes-spring-data-rest/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>1.4.1.RELEASE</version>
+		<version>1.5.3.RELEASE</version>
 		<relativePath />
 	</parent>
 
diff --git a/samples/rest-notes-spring-hateoas/build.gradle b/samples/rest-notes-spring-hateoas/build.gradle
index 0306858f..e259a892 100644
--- a/samples/rest-notes-spring-hateoas/build.gradle
+++ b/samples/rest-notes-spring-hateoas/build.gradle
@@ -3,7 +3,7 @@ buildscript {
 		mavenCentral()
 	}
 	dependencies {
-		classpath 'org.springframework.boot:spring-boot-gradle-plugin:1.4.1.RELEASE'
+		classpath 'org.springframework.boot:spring-boot-gradle-plugin:1.5.3.RELEASE'
 	}
 }
 
diff --git a/samples/testng/build.gradle b/samples/testng/build.gradle
index 3b9abc85..a6ebbc27 100644
--- a/samples/testng/build.gradle
+++ b/samples/testng/build.gradle
@@ -3,7 +3,7 @@ buildscript {
 		mavenCentral()
 	}
 	dependencies {
-		classpath 'org.springframework.boot:spring-boot-gradle-plugin:1.4.1.RELEASE'
+		classpath 'org.springframework.boot:spring-boot-gradle-plugin:1.5.3.RELEASE'
 	}
 }