diff --git a/framework-docs/modules/ROOT/pages/web/webflux/ann-rest-exceptions.adoc b/framework-docs/modules/ROOT/pages/web/webflux/ann-rest-exceptions.adoc
index e75be6630c42..82923c22efce 100644
--- a/framework-docs/modules/ROOT/pages/web/webflux/ann-rest-exceptions.adoc
+++ b/framework-docs/modules/ROOT/pages/web/webflux/ann-rest-exceptions.adoc
@@ -46,7 +46,7 @@ use a protected method to map any exception to a `ProblemDetail`.
 
 You can register `ErrorResponse` interceptors through the
 xref:web/webflux/config.adoc[WebFlux Config] with a `WebFluxConfigurer`. Use that to intercept
-any RFC 7807 response and take some action.
+any RFC 9457 response and take some action.
 
 
 
diff --git a/framework-docs/modules/ROOT/pages/web/webmvc/mvc-ann-rest-exceptions.adoc b/framework-docs/modules/ROOT/pages/web/webmvc/mvc-ann-rest-exceptions.adoc
index adc8da9c8e0b..9cbb55a674de 100644
--- a/framework-docs/modules/ROOT/pages/web/webmvc/mvc-ann-rest-exceptions.adoc
+++ b/framework-docs/modules/ROOT/pages/web/webmvc/mvc-ann-rest-exceptions.adoc
@@ -46,7 +46,7 @@ use a protected method to map any exception to a `ProblemDetail`.
 
 You can register `ErrorResponse` interceptors through the
 xref:web/webmvc/mvc-config.adoc[MVC Config] with a `WebMvcConfigurer`. Use that to intercept
-any RFC 7807 response and take some action.
+any RFC 9457 response and take some action.
 
 
 
diff --git a/spring-web/src/main/java/org/springframework/http/converter/json/ProblemDetailJacksonXmlMixin.java b/spring-web/src/main/java/org/springframework/http/converter/json/ProblemDetailJacksonXmlMixin.java
index ccaccc4ebf15..11fcce7c803a 100644
--- a/spring-web/src/main/java/org/springframework/http/converter/json/ProblemDetailJacksonXmlMixin.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/json/ProblemDetailJacksonXmlMixin.java
@@ -47,7 +47,7 @@
 @JacksonXmlRootElement(localName = "problem", namespace = ProblemDetailJacksonXmlMixin.RFC_7807_NAMESPACE)
 public interface ProblemDetailJacksonXmlMixin {
 
-	/** RFC 7807 namespace. */
+	/** RFC 7807 (obsoleted by RFC 9457) namespace. */
 	String RFC_7807_NAMESPACE = "urn:ietf:rfc:7807";
 
 
diff --git a/spring-webflux/src/main/java/org/springframework/web/reactive/config/WebFluxConfigurer.java b/spring-webflux/src/main/java/org/springframework/web/reactive/config/WebFluxConfigurer.java
index 408077cef5a3..59b880fccc08 100644
--- a/spring-webflux/src/main/java/org/springframework/web/reactive/config/WebFluxConfigurer.java
+++ b/spring-webflux/src/main/java/org/springframework/web/reactive/config/WebFluxConfigurer.java
@@ -138,7 +138,7 @@ default void configureArgumentResolvers(ArgumentResolverConfigurer configurer) {
 
 	/**
 	 * Add to the list of {@link ErrorResponse.Interceptor}'s to invoke when
-	 * rendering an RFC 7807 {@link org.springframework.http.ProblemDetail}
+	 * rendering an RFC 9457 {@link org.springframework.http.ProblemDetail}
 	 * error response.
 	 * @param interceptors the handlers to use
 	 * @since 6.2
diff --git a/spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/WebMvcConfigurer.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/WebMvcConfigurer.java
index 97bacaa1ebb9..96869dd59e7e 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/WebMvcConfigurer.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/WebMvcConfigurer.java
@@ -224,7 +224,7 @@ default void extendHandlerExceptionResolvers(List<HandlerExceptionResolver> reso
 
 	/**
 	 * Add to the list of {@link ErrorResponse.Interceptor}'s to apply when
-	 * rendering an RFC 7807 {@link org.springframework.http.ProblemDetail}
+	 * rendering an RFC 9457 {@link org.springframework.http.ProblemDetail}
 	 * error response.
 	 * @param interceptors the interceptors to use
 	 * @since 6.2
diff --git a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/ExceptionHandlerExceptionResolver.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/ExceptionHandlerExceptionResolver.java
index 93f8356d884e..9ceca359a686 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/ExceptionHandlerExceptionResolver.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/ExceptionHandlerExceptionResolver.java
@@ -251,7 +251,7 @@ public void setResponseBodyAdvice(@Nullable List<ResponseBodyAdvice<?>> response
 
 	/**
 	 * Configure a list of {@link ErrorResponse.Interceptor}'s to apply when
-	 * rendering an RFC 7807 {@link org.springframework.http.ProblemDetail}
+	 * rendering an RFC 9457 {@link org.springframework.http.ProblemDetail}
 	 * error response.
 	 * @param interceptors the handlers to use
 	 * @since 6.2
diff --git a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/RequestMappingHandlerAdapter.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/RequestMappingHandlerAdapter.java
index 743f4e774b80..8c4d7c94076d 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/RequestMappingHandlerAdapter.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/RequestMappingHandlerAdapter.java
@@ -408,7 +408,7 @@ public WebBindingInitializer getWebBindingInitializer() {
 
 	/**
 	 * Configure a list of {@link ErrorResponse.Interceptor}'s to apply when
-	 * rendering an RFC 7807 {@link org.springframework.http.ProblemDetail}
+	 * rendering an RFC 9457 {@link org.springframework.http.ProblemDetail}
 	 * error response.
 	 * @param interceptors the interceptors to use
 	 * @since 6.2