diff --git a/lib/client.ts b/lib/client.ts
index b09b22a..b0c16a5 100644
--- a/lib/client.ts
+++ b/lib/client.ts
@@ -7,6 +7,8 @@ import {
   DeliveryOptionsForEmail,
   DeliveryOptionsForInappWeb,
   PostUserRequest,
+  SlackChannel,
+  SlackUser,
   User,
   UserAccountMetadata,
   WS_REGION
@@ -130,8 +132,8 @@ type NotificationAPIClientSDK = {
   slack: {
     getOAuthUrl: (props?: { destinationUrl?: string }) => string;
     getChannels: () => Promise<{
-      channels: Record<string, string>;
-      users: Record<string, string>;
+      channels: SlackChannel[];
+      users: SlackUser[];
     }>;
     setChannel: (channelId: string) => Promise<void>;
   };
diff --git a/lib/interfaces.ts b/lib/interfaces.ts
index 4b74e0c..3e38896 100644
--- a/lib/interfaces.ts
+++ b/lib/interfaces.ts
@@ -277,3 +277,74 @@ export interface UserAccountMetadata {
   environmentVapidPublicKey: string;
   hasWebPushEnabled: boolean;
 }
+
+/* Slack Types Start */
+export interface SlackChannel {
+  context_team_id?: string;
+  conversation_host_id?: string;
+  created?: number;
+  creator?: string;
+  id?: string;
+  internal_team_ids?: string[];
+  is_archived?: boolean;
+  is_channel?: boolean;
+  is_ext_shared?: boolean;
+  is_general?: boolean;
+  is_global_shared?: boolean;
+  is_group?: boolean;
+  is_im?: boolean;
+  is_member?: boolean;
+  is_moved?: number;
+  is_mpim?: boolean;
+  is_org_default?: boolean;
+  is_org_mandatory?: boolean;
+  is_org_shared?: boolean;
+  is_pending_ext_shared?: boolean;
+  is_private?: boolean;
+  is_shared?: boolean;
+  is_user_deleted?: boolean;
+  name?: string;
+  name_normalized?: string;
+  num_members?: number;
+  pending_connected_team_ids?: string[];
+  pending_shared?: string[];
+  previous_names?: string[];
+  priority?: number;
+  properties?: unknown;
+  purpose?: unknown;
+  shared_team_ids?: string[];
+  topic?: unknown;
+  unlinked?: number;
+  updated?: number;
+  user?: string;
+}
+
+export interface SlackUser {
+  color?: string;
+  deleted?: boolean;
+  enterprise_user?: unknown;
+  has_2fa?: boolean;
+  id?: string;
+  is_admin?: boolean;
+  is_app_user?: boolean;
+  is_bot?: boolean;
+  is_connector_bot?: boolean;
+  is_email_confirmed?: boolean;
+  is_invited_user?: boolean;
+  is_owner?: boolean;
+  is_primary_owner?: boolean;
+  is_restricted?: boolean;
+  is_ultra_restricted?: boolean;
+  is_workflow_bot?: boolean;
+  locale?: string;
+  name?: string;
+  profile?: unknown;
+  real_name?: string;
+  team_id?: string;
+  two_factor_type?: string;
+  tz?: string;
+  tz_label?: string;
+  tz_offset?: number;
+  updated?: number;
+  who_can_share_contact_card?: string;
+}
diff --git a/package-lock.json b/package-lock.json
index 7ed29a4..32f8578 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@notificationapi/core",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@notificationapi/core",
-      "version": "1.0.1",
+      "version": "1.0.2",
       "devDependencies": {
         "@types/jest": "^29.5.3",
         "@types/node": "^20.14.10",
diff --git a/package.json b/package.json
index 28bb2d8..912eabf 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@notificationapi/core",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "type": "module",
   "main": "dist/main.js",
   "types": "dist/main.d.ts",