diff --git a/build.gradle b/build.gradle
index d0584be..6e603fa 100644
--- a/build.gradle
+++ b/build.gradle
@@ -44,7 +44,7 @@ allprojects {
         project.apply plugin: "io.freefair.maven-central.validate-poms"
 
         signing {
-            required { !version.endsWith('SNAPSHOT') && gradle.taskGraph.hasTask("publish") }
+            required = { !version.endsWith('SNAPSHOT') && gradle.taskGraph.hasTask("publish") }
 
             def signingKey = findProperty("signingKey")
             def signingPassword = findProperty("signingPassword")
diff --git a/settings.gradle b/settings.gradle
index a10a808..b3cefbb 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,7 +1,7 @@
 pluginManagement {
     repositories {
         gradlePluginPortal()
-        maven { url 'https://repo.spring.io/milestone' }
+        maven { url = 'https://repo.spring.io/milestone' }
     }
 }
 
@@ -34,7 +34,7 @@ buildCache {
 dependencyResolutionManagement {
     repositories {
         mavenCentral()
-        maven { url 'https://repo.spring.io/milestone' }
+        maven { url = 'https://repo.spring.io/milestone' }
     }
 }