diff --git a/samples/standalone/dsl/http-client/build.gradle b/samples/standalone/dsl/http-client/build.gradle
index 8c205cbed3..752be56a53 100644
--- a/samples/standalone/dsl/http-client/build.gradle
+++ b/samples/standalone/dsl/http-client/build.gradle
@@ -7,7 +7,7 @@ buildscript {
 		maven { url "http://repo.spring.io/release" }
 	}
 	dependencies {
-		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.4.RELEASE"
+		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.9.RELEASE"
 	}
 }
 
diff --git a/samples/standalone/dsl/http-server/build.gradle b/samples/standalone/dsl/http-server/build.gradle
index 708e19075e..95237b337a 100644
--- a/samples/standalone/dsl/http-server/build.gradle
+++ b/samples/standalone/dsl/http-server/build.gradle
@@ -9,7 +9,7 @@ buildscript {
 	}
 // end::repos[]
 	dependencies {
-		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.4.RELEASE"
+		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.9.RELEASE"
 		classpath "org.springframework.cloud:spring-cloud-contract-gradle-plugin:${findProperty('verifierVersion') ?: verifierVersion}"
 	}
 }
diff --git a/samples/standalone/messaging/stream-sink/build.gradle b/samples/standalone/messaging/stream-sink/build.gradle
index 804e0a1224..aa3a71be22 100644
--- a/samples/standalone/messaging/stream-sink/build.gradle
+++ b/samples/standalone/messaging/stream-sink/build.gradle
@@ -7,7 +7,7 @@ buildscript {
 		maven { url "http://repo.spring.io/release" }
 	}
 	dependencies {
-		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.4.RELEASE"
+		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.9.RELEASE"
 	}
 }
 
diff --git a/samples/standalone/messaging/stream-source/build.gradle b/samples/standalone/messaging/stream-source/build.gradle
index f37f6bd09c..d44e965526 100644
--- a/samples/standalone/messaging/stream-source/build.gradle
+++ b/samples/standalone/messaging/stream-source/build.gradle
@@ -7,7 +7,7 @@ buildscript {
 		maven { url "http://repo.spring.io/release" }
 	}
 	dependencies {
-		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.4.RELEASE"
+		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.9.RELEASE"
 		classpath "org.springframework.cloud:spring-cloud-contract-gradle-plugin:${findProperty('verifierVersion') ?: verifierVersion}"
 		classpath "com.jayway.restassured:rest-assured:2.9.0"
 		classpath "com.jayway.restassured:spring-mock-mvc:2.9.0"
diff --git a/samples/standalone/pact/pact-http-client/build.gradle b/samples/standalone/pact/pact-http-client/build.gradle
index f477e647d2..0d73f96f4d 100644
--- a/samples/standalone/pact/pact-http-client/build.gradle
+++ b/samples/standalone/pact/pact-http-client/build.gradle
@@ -7,7 +7,7 @@ buildscript {
 		maven { url "http://repo.spring.io/release" }
 	}
 	dependencies {
-		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.4.RELEASE"
+		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.9.RELEASE"
 	}
 }
 
diff --git a/samples/standalone/pact/pact-http-server/build.gradle b/samples/standalone/pact/pact-http-server/build.gradle
index 6833482dc8..1edf17f642 100644
--- a/samples/standalone/pact/pact-http-server/build.gradle
+++ b/samples/standalone/pact/pact-http-server/build.gradle
@@ -7,7 +7,7 @@ buildscript {
 		maven { url "http://repo.spring.io/release" }
 	}
 	dependencies {
-		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.4.RELEASE"
+		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.9.RELEASE"
 		classpath "org.springframework.cloud:spring-cloud-contract-gradle-plugin:${findProperty('verifierVersion') ?: verifierVersion}"
 		//tag::pact_dependency[]
 		classpath "org.springframework.cloud:spring-cloud-contract-spec-pact:${findProperty('verifierVersion') ?: verifierVersion}"
diff --git a/samples/standalone/restdocs/http-client/build.gradle b/samples/standalone/restdocs/http-client/build.gradle
index 612371779f..3457d39d16 100644
--- a/samples/standalone/restdocs/http-client/build.gradle
+++ b/samples/standalone/restdocs/http-client/build.gradle
@@ -7,7 +7,7 @@ buildscript {
 		maven { url "http://repo.spring.io/release" }
 	}
 	dependencies {
-		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.4.RELEASE"
+		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.9.RELEASE"
 	}
 }
 
diff --git a/samples/standalone/restdocs/http-server/build.gradle b/samples/standalone/restdocs/http-server/build.gradle
index f4c0302c39..7a23f84dfb 100644
--- a/samples/standalone/restdocs/http-server/build.gradle
+++ b/samples/standalone/restdocs/http-server/build.gradle
@@ -10,7 +10,7 @@ buildscript {
 		maven { url "http://repo.spring.io/plugins-staging-local/" }
 	}
 	dependencies {
-		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.4.RELEASE"
+		classpath "org.springframework.boot:spring-boot-gradle-plugin:1.5.9.RELEASE"
 	}
 }
 
diff --git a/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/build.gradle b/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/build.gradle
index 5674941167..2d383f25d3 100644
--- a/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/build.gradle
+++ b/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/build.gradle
@@ -23,7 +23,7 @@ ext {
 	]
 }
 
-project.version = findProperty('verifierVersion') ?: '1.5.4.RELEASE'
+project.version = findProperty('verifierVersion') ?: '1.5.9.RELEASE'
 apply plugin: 'groovy'
 apply from: "$rootDir/gradle/release.gradle"
 apply plugin: 'eclipse'
diff --git a/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/sampleJerseyProject/build.gradle b/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/sampleJerseyProject/build.gradle
index 41e05260c2..5a0f9725c7 100644
--- a/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/sampleJerseyProject/build.gradle
+++ b/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/sampleJerseyProject/build.gradle
@@ -20,7 +20,7 @@ buildscript {
 		mavenCentral()
 	}
 	dependencies {
-		classpath("org.springframework.boot:spring-boot-gradle-plugin:1.5.4.RELEASE")
+		classpath("org.springframework.boot:spring-boot-gradle-plugin:1.5.9.RELEASE")
 	}
 }
 
diff --git a/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/sampleProject/build.gradle b/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/sampleProject/build.gradle
index c690f91b42..80388a96d9 100644
--- a/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/sampleProject/build.gradle
+++ b/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/sampleProject/build.gradle
@@ -20,7 +20,7 @@ buildscript {
 		mavenLocal()
 	}
 	dependencies {
-		classpath("org.springframework.boot:spring-boot-gradle-plugin:1.5.4.RELEASE")
+		classpath("org.springframework.boot:spring-boot-gradle-plugin:1.5.9.RELEASE")
 	}
 }
 
diff --git a/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/scenarioProject/build.gradle b/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/scenarioProject/build.gradle
index 12068579b3..25b5133ae9 100644
--- a/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/scenarioProject/build.gradle
+++ b/spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/test/resources/functionalTest/scenarioProject/build.gradle
@@ -20,7 +20,7 @@ buildscript {
 		mavenLocal()
 	}
 	dependencies {
-		classpath("org.springframework.boot:spring-boot-gradle-plugin:1.5.4.RELEASE")
+		classpath("org.springframework.boot:spring-boot-gradle-plugin:1.5.9.RELEASE")
 	}
 }
 
diff --git a/spring-cloud-contract-tools/spring-cloud-contract-maven-plugin/src/test/projects/plugin-extension/pom.xml b/spring-cloud-contract-tools/spring-cloud-contract-maven-plugin/src/test/projects/plugin-extension/pom.xml
index 3c718f96f0..d83b95cf92 100644
--- a/spring-cloud-contract-tools/spring-cloud-contract-maven-plugin/src/test/projects/plugin-extension/pom.xml
+++ b/spring-cloud-contract-tools/spring-cloud-contract-maven-plugin/src/test/projects/plugin-extension/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>1.5.4.RELEASE</version>
+        <version>1.5.9.RELEASE</version>
     </parent>
 
     <dependencies>
diff --git a/spring-cloud-contract-tools/spring-cloud-contract-maven-plugin/src/test/projects/spring-boot-groovy/pom.xml b/spring-cloud-contract-tools/spring-cloud-contract-maven-plugin/src/test/projects/spring-boot-groovy/pom.xml
index 77aacd7970..fe239312b9 100644
--- a/spring-cloud-contract-tools/spring-cloud-contract-maven-plugin/src/test/projects/spring-boot-groovy/pom.xml
+++ b/spring-cloud-contract-tools/spring-cloud-contract-maven-plugin/src/test/projects/spring-boot-groovy/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>1.5.4.RELEASE</version>
+        <version>1.5.9.RELEASE</version>
     </parent>
 
     <dependencies>
diff --git a/spring-cloud-contract-tools/spring-cloud-contract-maven-plugin/src/test/projects/spring-boot-java/pom.xml b/spring-cloud-contract-tools/spring-cloud-contract-maven-plugin/src/test/projects/spring-boot-java/pom.xml
index 3c718f96f0..d83b95cf92 100644
--- a/spring-cloud-contract-tools/spring-cloud-contract-maven-plugin/src/test/projects/spring-boot-java/pom.xml
+++ b/spring-cloud-contract-tools/spring-cloud-contract-maven-plugin/src/test/projects/spring-boot-java/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>1.5.4.RELEASE</version>
+        <version>1.5.9.RELEASE</version>
     </parent>
 
     <dependencies>