diff --git a/start-site/src/main/java/io/spring/start/site/extension/dependency/testcontainers/TestcontainersProjectGenerationConfiguration.java b/start-site/src/main/java/io/spring/start/site/extension/dependency/testcontainers/TestcontainersProjectGenerationConfiguration.java
index 2ec09f0a02f..4362a230bc6 100644
--- a/start-site/src/main/java/io/spring/start/site/extension/dependency/testcontainers/TestcontainersProjectGenerationConfiguration.java
+++ b/start-site/src/main/java/io/spring/start/site/extension/dependency/testcontainers/TestcontainersProjectGenerationConfiguration.java
@@ -38,7 +38,6 @@
 import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.Import;
 
 /**
  * Configuration for generation of projects that depend on Testcontainers.
@@ -69,7 +68,7 @@ public ImplicitDependencyHelpDocumentCustomizer testcontainersHelpCustomizer(Bui
 
 	@Configuration(proxyBeanMethods = false)
 	@ConditionalOnPlatformVersion("3.1.0-RC1")
-	static class ServiceConnectionsConfiguration {
+	static class SpringBoot31Configuration {
 
 		@Bean
 		ServiceConnections serviceConnections(ObjectProvider<ServiceConnectionsCustomizer> customizers) {
@@ -78,67 +77,64 @@ ServiceConnections serviceConnections(ObjectProvider<ServiceConnectionsCustomize
 			return serviceConnections;
 		}
 
-	}
+		@Configuration(proxyBeanMethods = false)
+		static class SpringBootSupportConfiguration {
 
-	@Configuration(proxyBeanMethods = false)
-	@ConditionalOnPlatformVersion("3.1.0-RC1")
-	@Import(ServiceConnectionsConfiguration.class)
-	static class SpringBootSupportConfiguration {
+			@Bean
+			BuildCustomizer<Build> springBootTestcontainersBuildCustomizer() {
+				return (build) -> build.dependencies()
+					.add("spring-boot-testcontainers",
+							Dependency.withCoordinates("org.springframework.boot", "spring-boot-testcontainers")
+								.scope(DependencyScope.TEST_COMPILE));
 
-		@Bean
-		BuildCustomizer<Build> springBootTestcontainersBuildCustomizer() {
-			return (build) -> build.dependencies()
-				.add("spring-boot-testcontainers",
-						Dependency.withCoordinates("org.springframework.boot", "spring-boot-testcontainers")
-							.scope(DependencyScope.TEST_COMPILE));
+			}
 
-		}
+			@Bean
+			TestContainersHelpDocumentCustomizer springBootTestcontainersHelpDocumentCustomizer(
+					ProjectDescription description, ServiceConnections serviceConnections) {
+				return new TestContainersHelpDocumentCustomizer(description, serviceConnections);
+			}
 
-		@Bean
-		TestContainersHelpDocumentCustomizer springBootTestcontainersHelpDocumentCustomizer(
-				ProjectDescription description, ServiceConnections serviceConnections) {
-			return new TestContainersHelpDocumentCustomizer(description, serviceConnections);
 		}
 
-	}
-
-	@Configuration(proxyBeanMethods = false)
-	@ConditionalOnPlatformVersion("3.1.0-RC1")
-	@Import(ServiceConnectionsConfiguration.class)
-	static class TestApplicationConfiguration {
-
-		private final ProjectDescription description;
+		@Configuration(proxyBeanMethods = false)
+		static class TestApplicationConfiguration {
+
+			private final ProjectDescription description;
+
+			private final IndentingWriterFactory indentingWriterFactory;
+
+			TestApplicationConfiguration(ProjectDescription description,
+					IndentingWriterFactory indentingWriterFactory) {
+				this.description = description;
+				this.indentingWriterFactory = indentingWriterFactory;
+			}
+
+			@Bean
+			@ConditionalOnLanguage(GroovyLanguage.ID)
+			GroovyTestContainersApplicationCodeProjectContributor groovyTestContainersApplicationCodeProjectContributor(
+					ServiceConnections serviceConnections) {
+				return new GroovyTestContainersApplicationCodeProjectContributor(this.indentingWriterFactory,
+						this.description, serviceConnections);
+			}
+
+			@Bean
+			@ConditionalOnLanguage(KotlinLanguage.ID)
+			@ConditionalOnPlatformVersion("3.1.1-SNAPSHOT") // https://github.com/spring-projects/spring-boot/issues/35756
+			KotlinTestContainersApplicationCodeProjectContributor kotlinTestContainersApplicationCodeProjectContributor(
+					ServiceConnections serviceConnections) {
+				return new KotlinTestContainersApplicationCodeProjectContributor(this.indentingWriterFactory,
+						this.description, serviceConnections);
+			}
+
+			@Bean
+			@ConditionalOnLanguage(JavaLanguage.ID)
+			JavaTestContainersApplicationCodeProjectContributor javaTestContainersApplicationCodeProjectContributor(
+					ServiceConnections serviceConnections) {
+				return new JavaTestContainersApplicationCodeProjectContributor(this.indentingWriterFactory,
+						this.description, serviceConnections);
+			}
 
-		private final IndentingWriterFactory indentingWriterFactory;
-
-		TestApplicationConfiguration(ProjectDescription description, IndentingWriterFactory indentingWriterFactory) {
-			this.description = description;
-			this.indentingWriterFactory = indentingWriterFactory;
-		}
-
-		@Bean
-		@ConditionalOnLanguage(GroovyLanguage.ID)
-		GroovyTestContainersApplicationCodeProjectContributor groovyTestContainersApplicationCodeProjectContributor(
-				ServiceConnections serviceConnections) {
-			return new GroovyTestContainersApplicationCodeProjectContributor(this.indentingWriterFactory,
-					this.description, serviceConnections);
-		}
-
-		@Bean
-		@ConditionalOnLanguage(KotlinLanguage.ID)
-		@ConditionalOnPlatformVersion("3.1.1-SNAPSHOT") // https://github.com/spring-projects/spring-boot/issues/35756
-		KotlinTestContainersApplicationCodeProjectContributor kotlinTestContainersApplicationCodeProjectContributor(
-				ServiceConnections serviceConnections) {
-			return new KotlinTestContainersApplicationCodeProjectContributor(this.indentingWriterFactory,
-					this.description, serviceConnections);
-		}
-
-		@Bean
-		@ConditionalOnLanguage(JavaLanguage.ID)
-		JavaTestContainersApplicationCodeProjectContributor javaTestContainersApplicationCodeProjectContributor(
-				ServiceConnections serviceConnections) {
-			return new JavaTestContainersApplicationCodeProjectContributor(this.indentingWriterFactory,
-					this.description, serviceConnections);
 		}
 
 	}