diff --git a/build.gradle b/build.gradle
index 1354cc01f3..75c380c043 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,7 +11,7 @@ buildscript {
 		classpath('me.champeau.gradle:gradle-javadoc-hotfix-plugin:0.1')
 		classpath('org.asciidoctor:asciidoctor-gradle-plugin:1.5.1')
 		classpath("io.spring.gradle:docbook-reference-plugin:0.3.1")
-		classpath("org.springframework.boot:spring-boot-gradle-plugin:1.5.2.RELEASE")
+		classpath("org.springframework.boot:spring-boot-gradle-plugin:1.5.15.RELEASE")
 	}
 }
 
diff --git a/gradle/javaprojects.gradle b/gradle/javaprojects.gradle
index b2c5cd78f0..8b38400f30 100644
--- a/gradle/javaprojects.gradle
+++ b/gradle/javaprojects.gradle
@@ -36,7 +36,7 @@ ext.springDataCommonsVersion = '1.13.12.RELEASE'
 ext.springDataJpaVersion = '1.11.12.RELEASE'
 ext.springDataRedisVersion = '1.8.12.RELEASE'
 ext.springSessionVersion = '1.3.2.RELEASE'
-ext.springBootVersion = '1.5.12.RELEASE'
+ext.springBootVersion = '1.5.15.RELEASE'
 ext.thymeleafVersion = '3.0.9.RELEASE'
 ext.jsonassertVersion = '1.4.0'
 ext.validationApiVersion = '1.1.0.Final'