diff --git a/services/src/main/java/org/keycloak/services/clientregistration/DefaultClientRegistrationProvider.java b/services/src/main/java/org/keycloak/services/clientregistration/DefaultClientRegistrationProvider.java
index 23c15dc..0b58145 100755
--- a/services/src/main/java/org/keycloak/services/clientregistration/DefaultClientRegistrationProvider.java
+++ b/services/src/main/java/org/keycloak/services/clientregistration/DefaultClientRegistrationProvider.java
@@ -62,6 +62,7 @@ public class DefaultClientRegistrationProvider extends AbstractClientRegistratio
@PUT
@Path("{clientId}")
@Consumes(MediaType.APPLICATION_JSON)
+ @Produces(MediaType.APPLICATION_JSON)
public Response updateDefault(@PathParam("clientId") String clientId, ClientRepresentation client) {
DefaultClientRegistrationContext context = new DefaultClientRegistrationContext(session, client, this);
client = update(clientId, context);
diff --git a/services/src/main/java/org/keycloak/services/clientregistration/oidc/OIDCClientRegistrationProvider.java b/services/src/main/java/org/keycloak/services/clientregistration/oidc/OIDCClientRegistrationProvider.java
index 89f93f0..3dd657f 100755
--- a/services/src/main/java/org/keycloak/services/clientregistration/oidc/OIDCClientRegistrationProvider.java
+++ b/services/src/main/java/org/keycloak/services/clientregistration/oidc/OIDCClientRegistrationProvider.java
@@ -101,6 +101,7 @@ public class OIDCClientRegistrationProvider extends AbstractClientRegistrationPr
@PUT
@Path("{clientId}")
@Consumes(MediaType.APPLICATION_JSON)
+ @Produces(MediaType.APPLICATION_JSON)
public Response updateOIDC(@PathParam("clientId") String clientId, OIDCClientRepresentation clientOIDC) {
try {
ClientRepresentation client = DescriptionConverter.toInternal(session, clientOIDC);