diff --git a/spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/docker/configuration/JsonEncodedDockerRegistryAuthentication.java b/spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/docker/configuration/JsonEncodedDockerRegistryAuthentication.java
index 6567cdec43b..46b7bad145e 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/docker/configuration/JsonEncodedDockerRegistryAuthentication.java
+++ b/spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/docker/configuration/JsonEncodedDockerRegistryAuthentication.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 the original author or authors.
+ * Copyright 2012-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,6 +18,7 @@ package org.springframework.boot.buildpack.platform.docker.configuration;
 
 import java.util.Base64;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.core.JsonProcessingException;
 
 import org.springframework.boot.buildpack.platform.json.SharedObjectMapper;
@@ -30,6 +31,7 @@ import org.springframework.boot.buildpack.platform.json.SharedObjectMapper;
  */
 class JsonEncodedDockerRegistryAuthentication implements DockerRegistryAuthentication {
 
+	@JsonIgnore
 	private String authHeader;
 
 	@Override
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/configuration/DockerRegistryTokenAuthenticationTests.java b/spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/configuration/DockerRegistryTokenAuthenticationTests.java
index 24706a958bd..c2a855977fd 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/configuration/DockerRegistryTokenAuthenticationTests.java
+++ b/spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/configuration/DockerRegistryTokenAuthenticationTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 the original author or authors.
+ * Copyright 2012-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -39,7 +39,7 @@ class DockerRegistryTokenAuthenticationTests extends AbstractJsonTests {
 		DockerRegistryTokenAuthentication auth = new DockerRegistryTokenAuthentication("tokenvalue");
 		String header = auth.getAuthHeader();
 		String expectedJson = StreamUtils.copyToString(getContent("auth-token.json"), StandardCharsets.UTF_8);
-		JSONAssert.assertEquals(expectedJson, new String(Base64.getUrlDecoder().decode(header)), false);
+		JSONAssert.assertEquals(expectedJson, new String(Base64.getUrlDecoder().decode(header)), true);
 	}
 
 }
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/configuration/DockerRegistryUserAuthenticationTests.java b/spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/configuration/DockerRegistryUserAuthenticationTests.java
index da29ffbe4f0..0bd78f70dca 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/configuration/DockerRegistryUserAuthenticationTests.java
+++ b/spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/configuration/DockerRegistryUserAuthenticationTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 the original author or authors.
+ * Copyright 2012-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -38,7 +38,7 @@ class DockerRegistryUserAuthenticationTests extends AbstractJsonTests {
 	void createMinimalAuthHeaderReturnsEncodedHeader() throws IOException, JSONException {
 		DockerRegistryUserAuthentication auth = new DockerRegistryUserAuthentication("user", "secret",
 				"https://docker.example.com", "docker@example.com");
-		JSONAssert.assertEquals(jsonContent("auth-user-full.json"), decoded(auth.getAuthHeader()), false);
+		JSONAssert.assertEquals(jsonContent("auth-user-full.json"), decoded(auth.getAuthHeader()), true);
 	}
 
 	@Test