diff --git a/lib/services/outline-service.ts b/lib/services/outline-service.ts
index a6384dfa..c24fe949 100644
--- a/lib/services/outline-service.ts
+++ b/lib/services/outline-service.ts
@@ -36,8 +36,9 @@ export class OutlineService {
         name: collectionName,
         description: mission.description || 'Mission documentation',
         color: '#4f46e5', // Indigo color as default
-        permission: "read_write", // This should be one of the allowed values
-        private: true        // This is what actually makes it private
+        permission: "read", // Use read-only permission
+        private: true,     // Make it private
+        sharing: false     // Disable sharing
       };
       
       console.log('Sending to Outline API:', JSON.stringify(payload, null, 2));