diff --git a/buildSrc/build.gradle b/buildSrc/build.gradle
index 576ff6cce4..174e4e700f 100644
--- a/buildSrc/build.gradle
+++ b/buildSrc/build.gradle
@@ -8,7 +8,6 @@ plugins {
 sourceCompatibility = JavaVersion.VERSION_11
 
 repositories {
-	jcenter()
 	gradlePluginPortal()
 	mavenCentral()
 	maven { url 'https://repo.spring.io/plugins-release/' }
diff --git a/buildSrc/src/main/groovy/io/spring/gradle/convention/RepositoryConventionPlugin.groovy b/buildSrc/src/main/groovy/io/spring/gradle/convention/RepositoryConventionPlugin.groovy
index c242081429..407163d82a 100644
--- a/buildSrc/src/main/groovy/io/spring/gradle/convention/RepositoryConventionPlugin.groovy
+++ b/buildSrc/src/main/groovy/io/spring/gradle/convention/RepositoryConventionPlugin.groovy
@@ -35,11 +35,6 @@ class RepositoryConventionPlugin implements Plugin<Project> {
 				mavenLocal()
 			}
 			mavenCentral()
-			jcenter() {
-				content {
-					includeGroup "org.gretty"
-				}
-			}
 			if (isSnapshot) {
 				maven {
 					name = 'artifactory-snapshot'
diff --git a/buildSrc/src/test/java/io/spring/gradle/convention/RepositoryConventionPluginTests.java b/buildSrc/src/test/java/io/spring/gradle/convention/RepositoryConventionPluginTests.java
index 2bad49c8a3..f1048dbbab 100644
--- a/buildSrc/src/test/java/io/spring/gradle/convention/RepositoryConventionPluginTests.java
+++ b/buildSrc/src/test/java/io/spring/gradle/convention/RepositoryConventionPluginTests.java
@@ -107,7 +107,7 @@ public class RepositoryConventionPluginTests {
 		this.project.getPluginManager().apply(RepositoryConventionPlugin.class);
 
 		RepositoryHandler repositories = this.project.getRepositories();
-		assertThat(repositories).hasSize(5);
+		assertThat(repositories).hasSize(4);
 		assertThat((repositories.get(0)).getName()).isEqualTo("MavenLocal");
 	}
 
@@ -119,39 +119,33 @@ public class RepositoryConventionPluginTests {
 		this.project.getPluginManager().apply(RepositoryConventionPlugin.class);
 
 		RepositoryHandler repositories = this.project.getRepositories();
-		assertThat(repositories).hasSize(6);
+		assertThat(repositories).hasSize(5);
 		assertThat((repositories.get(0)).getName()).isEqualTo("MavenLocal");
 	}
 
 	private void assertSnapshotRepository(RepositoryHandler repositories) {
-		assertThat(repositories).extracting(ArtifactRepository::getName).hasSize(6);
-		assertThat(((MavenArtifactRepository) repositories.get(0)).getUrl().toString())
-				.isEqualTo("https://repo.maven.apache.org/maven2/");
-		assertThat(((MavenArtifactRepository) repositories.get(1)).getUrl().toString())
-				.isEqualTo("https://jcenter.bintray.com/");
-		assertThat(((MavenArtifactRepository) repositories.get(2)).getUrl().toString())
-				.isEqualTo("https://repo.spring.io/snapshot/");
-		assertThat(((MavenArtifactRepository) repositories.get(3)).getUrl().toString())
-				.isEqualTo("https://repo.spring.io/milestone/");
-	}
-
-	private void assertMilestoneRepository(RepositoryHandler repositories) {
 		assertThat(repositories).extracting(ArtifactRepository::getName).hasSize(5);
 		assertThat(((MavenArtifactRepository) repositories.get(0)).getUrl().toString())
 				.isEqualTo("https://repo.maven.apache.org/maven2/");
 		assertThat(((MavenArtifactRepository) repositories.get(1)).getUrl().toString())
-				.isEqualTo("https://jcenter.bintray.com/");
+				.isEqualTo("https://repo.spring.io/snapshot/");
 		assertThat(((MavenArtifactRepository) repositories.get(2)).getUrl().toString())
 				.isEqualTo("https://repo.spring.io/milestone/");
 	}
 
-	private void assertReleaseRepository(RepositoryHandler repositories) {
+	private void assertMilestoneRepository(RepositoryHandler repositories) {
 		assertThat(repositories).extracting(ArtifactRepository::getName).hasSize(4);
 		assertThat(((MavenArtifactRepository) repositories.get(0)).getUrl().toString())
 				.isEqualTo("https://repo.maven.apache.org/maven2/");
 		assertThat(((MavenArtifactRepository) repositories.get(1)).getUrl().toString())
-				.isEqualTo("https://jcenter.bintray.com/");
-		assertThat(((MavenArtifactRepository) repositories.get(2)).getUrl().toString())
+				.isEqualTo("https://repo.spring.io/milestone/");
+	}
+
+	private void assertReleaseRepository(RepositoryHandler repositories) {
+		assertThat(repositories).extracting(ArtifactRepository::getName).hasSize(3);
+		assertThat(((MavenArtifactRepository) repositories.get(0)).getUrl().toString())
+				.isEqualTo("https://repo.maven.apache.org/maven2/");
+		assertThat(((MavenArtifactRepository) repositories.get(1)).getUrl().toString())
 				.isEqualTo("https://repo.spring.io/release/");
 	}