diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java
index 6a2b360fd12..29eda77b3a5 100644
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java
+++ b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java
@@ -32,8 +32,10 @@ import java.util.stream.Collectors;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
+import org.springframework.beans.BeansException;
 import org.springframework.beans.CachedIntrospectionResults;
 import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
 import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
 import org.springframework.beans.factory.groovy.GroovyBeanDefinitionReader;
 import org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory;
@@ -56,6 +58,7 @@ import org.springframework.context.annotation.AnnotatedBeanDefinitionReader;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.context.annotation.AnnotationConfigUtils;
 import org.springframework.context.annotation.ClassPathBeanDefinitionScanner;
+import org.springframework.context.annotation.ConfigurationClassPostProcessor;
 import org.springframework.context.support.AbstractApplicationContext;
 import org.springframework.context.support.GenericApplicationContext;
 import org.springframework.core.GenericTypeResolver;
@@ -397,6 +400,7 @@ public class SpringApplication {
 		if (this.lazyInitialization) {
 			context.addBeanFactoryPostProcessor(new LazyInitializationBeanFactoryPostProcessor());
 		}
+		context.addBeanFactoryPostProcessor(new PropertySourceOrderingBeanFactoryPostProcessor(context));
 		if (!NativeDetector.inNativeImage()) {
 			// Load the sources
 			Set<Object> sources = getAllSources();
@@ -1374,4 +1378,28 @@ public class SpringApplication {
 		return new LinkedHashSet<>(list);
 	}
 
+	/**
+	 * {@link BeanFactoryPostProcessor} to re-order our property sources below any
+	 * {@code @PropertySource} items added by the {@link ConfigurationClassPostProcessor}.
+	 */
+	private static class PropertySourceOrderingBeanFactoryPostProcessor implements BeanFactoryPostProcessor, Ordered {
+
+		private final ConfigurableApplicationContext context;
+
+		PropertySourceOrderingBeanFactoryPostProcessor(ConfigurableApplicationContext context) {
+			this.context = context;
+		}
+
+		@Override
+		public int getOrder() {
+			return Ordered.HIGHEST_PRECEDENCE;
+		}
+
+		@Override
+		public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
+			DefaultPropertiesPropertySource.moveToEnd(this.context.getEnvironment());
+		}
+
+	}
+
 }
diff --git a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/SpringApplicationTests.java b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/SpringApplicationTests.java
index 38e4608dbb8..732ba63cdf4 100644
--- a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/SpringApplicationTests.java
+++ b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/SpringApplicationTests.java
@@ -1250,6 +1250,16 @@ class SpringApplicationTests {
 		assertThat(application.getEnvironmentPrefix()).isEqualTo("my");
 	}
 
+	@Test
+	void movesConfigClassPropertySourcesToEnd() {
+		SpringApplication application = new SpringApplication(PropertySourceConfig.class);
+		application.setWebApplicationType(WebApplicationType.NONE);
+		application.setDefaultProperties(Collections.singletonMap("test.name", "test"));
+		this.context = application.run();
+		assertThat(this.context.getEnvironment().getProperty("test.name"))
+				.isEqualTo("spring-application-config-property-source");
+	}
+
 	@Test
 	void deregistersShutdownHookForFailedApplicationContext() {
 		SpringApplication application = new SpringApplication(BrokenPostConstructConfig.class);
@@ -1666,6 +1676,12 @@ class SpringApplicationTests {
 
 	}
 
+	@Configuration(proxyBeanMethods = false)
+	@org.springframework.context.annotation.PropertySource("classpath:spring-application-config-property-source.properties")
+	static class PropertySourceConfig {
+
+	}
+
 	static class ExitStatusException extends RuntimeException implements ExitCodeGenerator {
 
 		@Override
diff --git a/spring-boot-project/spring-boot/src/test/resources/spring-application-config-property-source.properties b/spring-boot-project/spring-boot/src/test/resources/spring-application-config-property-source.properties
new file mode 100644
index 00000000000..c1b09576e25
--- /dev/null
+++ b/spring-boot-project/spring-boot/src/test/resources/spring-application-config-property-source.properties
@@ -0,0 +1 @@
+test.name=spring-application-config-property-source
\ No newline at end of file