diff --git a/build.gradle b/build.gradle
index 7dd07ae..047ef8d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,9 +1,10 @@
 buildscript {
 	dependencies {
-		classpath 'io.spring.gradle:spring-build-conventions:0.0.17.RELEASE'
+		classpath 'io.spring.gradle:spring-build-conventions:0.0.20.RELEASE'
 		classpath "org.springframework.boot:spring-boot-gradle-plugin:$springBootVersion"
 	}
 	repositories {
+		gradlePluginPortal()
 		maven { url 'https://repo.spring.io/libs-release' }
 		maven { url 'https://repo.spring.io/plugins-snapshot' }
 	}