diff --git a/oauth2/oauth2-resource-server/src/main/java/org/springframework/security/oauth2/server/resource/introspection/NimbusOpaqueTokenIntrospector.java b/oauth2/oauth2-resource-server/src/main/java/org/springframework/security/oauth2/server/resource/introspection/NimbusOpaqueTokenIntrospector.java
index c284668604..d12fee4eed 100644
--- a/oauth2/oauth2-resource-server/src/main/java/org/springframework/security/oauth2/server/resource/introspection/NimbusOpaqueTokenIntrospector.java
+++ b/oauth2/oauth2-resource-server/src/main/java/org/springframework/security/oauth2/server/resource/introspection/NimbusOpaqueTokenIntrospector.java
@@ -58,7 +58,9 @@ import org.springframework.web.client.RestTemplate;
  * @author Josh Cummings
  * @author MD Sayem Ahmed
  * @since 5.2
+ * @deprecated Please use {@link SpringOpaqueTokenIntrospector} instead
  */
+@Deprecated
 public class NimbusOpaqueTokenIntrospector implements OpaqueTokenIntrospector {
 
 	private static final String AUTHORITY_PREFIX = "SCOPE_";
diff --git a/oauth2/oauth2-resource-server/src/main/java/org/springframework/security/oauth2/server/resource/introspection/NimbusReactiveOpaqueTokenIntrospector.java b/oauth2/oauth2-resource-server/src/main/java/org/springframework/security/oauth2/server/resource/introspection/NimbusReactiveOpaqueTokenIntrospector.java
index da183f28bc..b7debd105c 100644
--- a/oauth2/oauth2-resource-server/src/main/java/org/springframework/security/oauth2/server/resource/introspection/NimbusReactiveOpaqueTokenIntrospector.java
+++ b/oauth2/oauth2-resource-server/src/main/java/org/springframework/security/oauth2/server/resource/introspection/NimbusReactiveOpaqueTokenIntrospector.java
@@ -54,7 +54,9 @@ import org.springframework.web.reactive.function.client.WebClient;
  *
  * @author Josh Cummings
  * @since 5.2
+ * @deprecated Please use {@link SpringReactiveOpaqueTokenIntrospector} instead
  */
+@Deprecated
 public class NimbusReactiveOpaqueTokenIntrospector implements ReactiveOpaqueTokenIntrospector {
 
 	private static final String AUTHORITY_PREFIX = "SCOPE_";