diff --git a/core/spring-boot-test/src/main/java/org/springframework/boot/test/context/ConfigDataApplicationContextInitializer.java b/core/spring-boot-test/src/main/java/org/springframework/boot/test/context/ConfigDataApplicationContextInitializer.java
index 046812a1afb..cf2581242d1 100644
--- a/core/spring-boot-test/src/main/java/org/springframework/boot/test/context/ConfigDataApplicationContextInitializer.java
+++ b/core/spring-boot-test/src/main/java/org/springframework/boot/test/context/ConfigDataApplicationContextInitializer.java
@@ -16,10 +16,10 @@
 
 package org.springframework.boot.test.context;
 
-import org.springframework.boot.DefaultPropertiesPropertySource;
 import org.springframework.boot.bootstrap.DefaultBootstrapContext;
 import org.springframework.boot.context.config.ConfigData;
 import org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor;
+import org.springframework.boot.env.DefaultPropertiesPropertySource;
 import org.springframework.boot.env.RandomValuePropertySource;
 import org.springframework.context.ApplicationContextInitializer;
 import org.springframework.context.ConfigurableApplicationContext;
diff --git a/core/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java b/core/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java
index 8014385c21a..d4062fa4e68 100644
--- a/core/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java
+++ b/core/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java
@@ -65,6 +65,7 @@ import org.springframework.boot.context.properties.bind.Bindable;
 import org.springframework.boot.context.properties.bind.Binder;
 import org.springframework.boot.context.properties.source.ConfigurationPropertySources;
 import org.springframework.boot.convert.ApplicationConversionService;
+import org.springframework.boot.env.DefaultPropertiesPropertySource;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextInitializer;
 import org.springframework.context.ApplicationListener;
diff --git a/core/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigDataEnvironment.java b/core/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigDataEnvironment.java
index 6fe6053ce9a..68ff61f1d1c 100644
--- a/core/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigDataEnvironment.java
+++ b/core/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigDataEnvironment.java
@@ -26,7 +26,6 @@ import java.util.Set;
 import org.apache.commons.logging.Log;
 import org.jspecify.annotations.Nullable;
 
-import org.springframework.boot.DefaultPropertiesPropertySource;
 import org.springframework.boot.bootstrap.BootstrapRegistry.InstanceSupplier;
 import org.springframework.boot.bootstrap.BootstrapRegistry.Scope;
 import org.springframework.boot.bootstrap.ConfigurableBootstrapContext;
@@ -36,6 +35,7 @@ import org.springframework.boot.context.properties.bind.Bindable;
 import org.springframework.boot.context.properties.bind.Binder;
 import org.springframework.boot.context.properties.bind.PlaceholdersResolver;
 import org.springframework.boot.context.properties.source.ConfigurationPropertySource;
+import org.springframework.boot.env.DefaultPropertiesPropertySource;
 import org.springframework.boot.logging.DeferredLogFactory;
 import org.springframework.core.env.ConfigurableEnvironment;
 import org.springframework.core.env.Environment;
diff --git a/core/spring-boot/src/main/java/org/springframework/boot/DefaultPropertiesPropertySource.java b/core/spring-boot/src/main/java/org/springframework/boot/env/DefaultPropertiesPropertySource.java
similarity index 99%
rename from core/spring-boot/src/main/java/org/springframework/boot/DefaultPropertiesPropertySource.java
rename to core/spring-boot/src/main/java/org/springframework/boot/env/DefaultPropertiesPropertySource.java
index 5b4dfb4b450..871577a9c52 100644
--- a/core/spring-boot/src/main/java/org/springframework/boot/DefaultPropertiesPropertySource.java
+++ b/core/spring-boot/src/main/java/org/springframework/boot/env/DefaultPropertiesPropertySource.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.boot;
+package org.springframework.boot.env;
 
 import java.util.HashMap;
 import java.util.Map;
diff --git a/core/spring-boot/src/test/java/org/springframework/boot/SpringApplicationTests.java b/core/spring-boot/src/test/java/org/springframework/boot/SpringApplicationTests.java
index e7925a483c5..e709b60335e 100644
--- a/core/spring-boot/src/test/java/org/springframework/boot/SpringApplicationTests.java
+++ b/core/spring-boot/src/test/java/org/springframework/boot/SpringApplicationTests.java
@@ -71,6 +71,7 @@ import org.springframework.boot.context.event.ApplicationStartedEvent;
 import org.springframework.boot.context.event.ApplicationStartingEvent;
 import org.springframework.boot.context.event.SpringApplicationEvent;
 import org.springframework.boot.convert.ApplicationConversionService;
+import org.springframework.boot.env.DefaultPropertiesPropertySource;
 import org.springframework.boot.testsupport.classpath.ForkedClassPath;
 import org.springframework.boot.testsupport.classpath.resources.WithResource;
 import org.springframework.boot.testsupport.system.CapturedOutput;
diff --git a/core/spring-boot/src/test/java/org/springframework/boot/DefaultPropertiesPropertySourceTests.java b/core/spring-boot/src/test/java/org/springframework/boot/env/DefaultPropertiesPropertySourceTests.java
similarity index 99%
rename from core/spring-boot/src/test/java/org/springframework/boot/DefaultPropertiesPropertySourceTests.java
rename to core/spring-boot/src/test/java/org/springframework/boot/env/DefaultPropertiesPropertySourceTests.java
index 178a25c0304..fad63bd24fb 100644
--- a/core/spring-boot/src/test/java/org/springframework/boot/DefaultPropertiesPropertySourceTests.java
+++ b/core/spring-boot/src/test/java/org/springframework/boot/env/DefaultPropertiesPropertySourceTests.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.boot;
+package org.springframework.boot.env;
 
 import java.util.Collections;
 import java.util.function.Consumer;