diff --git a/packages/backend/src/apps/slack/data.ts b/packages/backend/src/apps/slack/data.ts
index ed4c9bf6..d2743b00 100644
--- a/packages/backend/src/apps/slack/data.ts
+++ b/packages/backend/src/apps/slack/data.ts
@@ -1,10 +1,12 @@
 import ListChannels from './data/list-channels';
-import { IJSONObject } from '@automatisch/types';
+import SlackClient from './client';
 
 export default class Data {
+  client: SlackClient;
   listChannels: ListChannels;
 
-  constructor(connectionData: IJSONObject) {
-    this.listChannels = new ListChannels(connectionData);
+  constructor(client: SlackClient) {
+    this.client = client;
+    this.listChannels = new ListChannels(client);
   }
 }
diff --git a/packages/backend/src/apps/slack/data/list-channels.ts b/packages/backend/src/apps/slack/data/list-channels.ts
index 36d0ea8e..e6b8593b 100644
--- a/packages/backend/src/apps/slack/data/list-channels.ts
+++ b/packages/backend/src/apps/slack/data/list-channels.ts
@@ -1,17 +1,27 @@
-import type { IJSONObject } from '@automatisch/types';
-import { WebClient } from '@slack/web-api';
+import { IJSONObject } from '@automatisch/types';
+import SlackClient from '../client';
 
 export default class ListChannels {
-  client: WebClient;
+  client: SlackClient;
 
-  constructor(connectionData: IJSONObject) {
-    this.client = new WebClient(connectionData.accessToken as string);
+  constructor(client: SlackClient) {
+    this.client = client;
   }
 
   async run() {
-    const { channels } = await this.client.conversations.list();
+    const response = await this.client.httpClient.get('/conversations.list', {
+      headers: {
+        Authorization: `Bearer ${this.client.connection.formattedData.accessToken}`,
+      },
+    });
 
-    return channels.map((channel) => {
+    if (response.data.ok === 'false') {
+      throw new Error(
+        `Error occured while fetching slack channels: ${response.data.error}`
+      );
+    }
+
+    return response.data.channels.map((channel: IJSONObject) => {
       return {
         value: channel.id,
         name: channel.name,
diff --git a/packages/backend/src/apps/slack/index.ts b/packages/backend/src/apps/slack/index.ts
index 19a2c034..21289148 100644
--- a/packages/backend/src/apps/slack/index.ts
+++ b/packages/backend/src/apps/slack/index.ts
@@ -26,6 +26,6 @@ export default class Slack implements IService {
 
     // this.triggers = new Triggers(this.client);
     // this.actions = new Actions(this.client);
-    // this.data = new Data(this.client);
+    this.data = new Data(this.client);
   }
 }
diff --git a/packages/backend/src/graphql/queries/get-data.ts b/packages/backend/src/graphql/queries/get-data.ts
index 5b8dff1a..f4fd4959 100644
--- a/packages/backend/src/graphql/queries/get-data.ts
+++ b/packages/backend/src/graphql/queries/get-data.ts
@@ -10,7 +10,10 @@ type Params = {
 const getData = async (_parent: unknown, params: Params, context: Context) => {
   const step = await context.currentUser
     .$relatedQuery('steps')
-    .withGraphFetched('connection, flow')
+    .withGraphFetched({
+      connection: true,
+      flow: true,
+    })
     .findById(params.stepId);
 
   if (!step) return null;