diff --git a/apps/server/src/api/v2/slack/index.ts b/apps/server/src/api/v2/slack/index.ts
index 3d244d4a0..4e2949535 100644
--- a/apps/server/src/api/v2/slack/index.ts
+++ b/apps/server/src/api/v2/slack/index.ts
@@ -19,7 +19,7 @@ import { updateIntegrationHandler } from './update-integration';
 
 const app = new Hono()
   // Public endpoints (no auth required for OAuth flow)
-  .post('/auth/init', requireAuth, zValidator('json', z.object({}).merge(InitiateOAuthSchema.unwrap())), initiateOAuthHandler)
+  .post('/auth/init', requireAuth, zValidator('json', InitiateOAuthSchema), initiateOAuthHandler)
   .get('/auth/callback', handleOAuthCallbackHandler)
   // Protected endpoints
   .get('/integration', requireAuth, getIntegrationHandler)
diff --git a/apps/server/src/api/v2/slack/initiate-oauth.ts b/apps/server/src/api/v2/slack/initiate-oauth.ts
index c3369f3de..eb01e9d86 100644
--- a/apps/server/src/api/v2/slack/initiate-oauth.ts
+++ b/apps/server/src/api/v2/slack/initiate-oauth.ts
@@ -46,7 +46,7 @@ export async function initiateOAuthHandler(c: Context): Promise<Response> {
       throw new HTTPException(400, { message: 'Organization not found' });
     }
 
-    const request = c.req.valid('json') as InitiateOAuthRequest;
+    const request = c.req.valid('json');
     const metadata = request?.metadata;
 
     const enrichedMetadata = {
diff --git a/apps/server/src/api/v2/slack/update-integration.ts b/apps/server/src/api/v2/slack/update-integration.ts
index 526ba3a96..258f13136 100644
--- a/apps/server/src/api/v2/slack/update-integration.ts
+++ b/apps/server/src/api/v2/slack/update-integration.ts
@@ -23,7 +23,7 @@ export async function updateIntegrationHandler(c: Context): Promise<Response> {
   }
 
   try {
-    const request = c.req.valid('json') as UpdateIntegrationRequest;
+    const request = c.req.valid('json');
 
     const updateData: {
       defaultChannel?: { id: string; name: string };
diff --git a/packages/server-shared/src/slack/requests.types.ts b/packages/server-shared/src/slack/requests.types.ts
index aed09ad9c..63feba058 100644
--- a/packages/server-shared/src/slack/requests.types.ts
+++ b/packages/server-shared/src/slack/requests.types.ts
@@ -11,17 +11,15 @@ const SlackSharingPermissionEnum: Record<SlackSharingPermissionBase, SlackSharin
   });
 
 // POST /api/v2/slack/auth/init
-export const InitiateOAuthSchema = z
-  .object({
-    metadata: z
-      .object({
-        return_url: z.string().optional(),
-        source: z.string().optional(),
-        project_id: z.string().uuid().optional(),
-      })
-      .optional(),
-  })
-  .optional();
+export const InitiateOAuthSchema = z.object({
+  metadata: z
+    .object({
+      return_url: z.string().optional(),
+      source: z.string().optional(),
+      project_id: z.string().uuid().optional(),
+    })
+    .optional(),
+});
 
 export type InitiateOAuthRequest = z.infer<typeof InitiateOAuthSchema>;