diff --git a/services/src/main/java/org/keycloak/services/resources/AccountService.java b/services/src/main/java/org/keycloak/services/resources/AccountService.java
index f2f4951233..75cc5a7134 100755
--- a/services/src/main/java/org/keycloak/services/resources/AccountService.java
+++ b/services/src/main/java/org/keycloak/services/resources/AccountService.java
@@ -486,6 +486,7 @@ public class AccountService extends AbstractSecuredLocalService {
 
     @Path("revoke-grant")
     @POST
+    @Consumes(MediaType.APPLICATION_FORM_URLENCODED)
     public Response processRevokeGrant(final MultivaluedMap<String, String> formData) {
         if (auth == null) {
             return login("applications");
diff --git a/services/src/main/java/org/keycloak/services/resources/admin/AuthenticationManagementResource.java b/services/src/main/java/org/keycloak/services/resources/admin/AuthenticationManagementResource.java
index 0128425953..c2f39f1dd1 100755
--- a/services/src/main/java/org/keycloak/services/resources/admin/AuthenticationManagementResource.java
+++ b/services/src/main/java/org/keycloak/services/resources/admin/AuthenticationManagementResource.java
@@ -986,6 +986,7 @@ public class AuthenticationManagementResource {
     @Path("config")
     @POST
     @NoCache
+    @Consumes(MediaType.APPLICATION_JSON)
     public Response createAuthenticatorConfig(AuthenticatorConfigRepresentation rep) {
         auth.requireManage();