diff --git a/src/actions/actions.spec.ts b/src/actions/actions.spec.ts
index 79abde396..2d2040e17 100644
--- a/src/actions/actions.spec.ts
+++ b/src/actions/actions.spec.ts
@@ -155,6 +155,7 @@ describe('Actions', () => {
             slug: 'member',
           },
           status: 'active',
+          customAttributes: {},
           createdAt: '2024-10-22T17:12:50.746Z',
           updatedAt: '2024-10-22T17:12:50.746Z',
         },
diff --git a/src/actions/fixtures/authentication-action-context.json b/src/actions/fixtures/authentication-action-context.json
index 314395aeb..83c73511d 100644
--- a/src/actions/fixtures/authentication-action-context.json
+++ b/src/actions/fixtures/authentication-action-context.json
@@ -35,6 +35,7 @@
             "slug": "member"
         },
         "status": "active",
+        "custom_attributes": {},
         "created_at": "2024-10-22T17:12:50.746Z",
         "updated_at": "2024-10-22T17:12:50.746Z"
     }
diff --git a/src/user-management/fixtures/deactivate-organization-membership.json b/src/user-management/fixtures/deactivate-organization-membership.json
index f3ed45f1a..84a29f593 100644
--- a/src/user-management/fixtures/deactivate-organization-membership.json
+++ b/src/user-management/fixtures/deactivate-organization-membership.json
@@ -7,6 +7,7 @@
   "role": {
     "slug": "member"
   },
+  "custom_attributes": {},
   "created_at": "2023-07-18T02:07:19.911Z",
   "updated_at": "2023-07-18T02:07:19.911Z"
 }
diff --git a/src/user-management/fixtures/list-organization-memberships.json b/src/user-management/fixtures/list-organization-memberships.json
index 740da8a3d..a468249a5 100644
--- a/src/user-management/fixtures/list-organization-memberships.json
+++ b/src/user-management/fixtures/list-organization-memberships.json
@@ -8,6 +8,10 @@
       "organization_id": "organization_01H5JQDV7R7ATEYZDEG0W5PRYS",
       "organization_name": "Example Organization",
       "status": "active",
+      "role": {
+        "slug": "member"
+      },
+      "custom_attributes": {},
       "created_at": "2023-07-18T02:07:19.911Z",
       "updated_at": "2023-07-18T02:07:19.911Z"
     }
diff --git a/src/user-management/fixtures/organization-membership.json b/src/user-management/fixtures/organization-membership.json
index ecd93edde..08148ee97 100644
--- a/src/user-management/fixtures/organization-membership.json
+++ b/src/user-management/fixtures/organization-membership.json
@@ -7,6 +7,7 @@
   "role": {
     "slug": "member"
   },
+  "custom_attributes": {},
   "created_at": "2023-07-18T02:07:19.911Z",
   "updated_at": "2023-07-18T02:07:19.911Z"
 }
diff --git a/src/user-management/interfaces/organization-membership.interface.ts b/src/user-management/interfaces/organization-membership.interface.ts
index be06586ca..19ba3a2db 100644
--- a/src/user-management/interfaces/organization-membership.interface.ts
+++ b/src/user-management/interfaces/organization-membership.interface.ts
@@ -13,6 +13,7 @@ export interface OrganizationMembership {
   updatedAt: string;
   role: RoleResponse;
   roles?: RoleResponse[];
+  customAttributes: Record<string, unknown>;
 }
 
 export interface OrganizationMembershipResponse {
@@ -26,4 +27,5 @@ export interface OrganizationMembershipResponse {
   updated_at: string;
   role: RoleResponse;
   roles?: RoleResponse[];
+  custom_attributes: Record<string, unknown>;
 }
diff --git a/src/user-management/serializers/organization-membership.serializer.ts b/src/user-management/serializers/organization-membership.serializer.ts
index 566cfe04c..8da96b5f8 100644
--- a/src/user-management/serializers/organization-membership.serializer.ts
+++ b/src/user-management/serializers/organization-membership.serializer.ts
@@ -16,4 +16,5 @@ export const deserializeOrganizationMembership = (
   updatedAt: organizationMembership.updated_at,
   role: organizationMembership.role,
   ...(organizationMembership.roles && { roles: organizationMembership.roles }),
+  customAttributes: organizationMembership.custom_attributes,
 });