diff --git a/lib/shared/thread-utils.js b/lib/shared/thread-utils.js
--- a/lib/shared/thread-utils.js
+++ b/lib/shared/thread-utils.js
@@ -83,7 +83,6 @@
   ThickMemberInfo,
   UserProfileThreadInfo,
   MixedRawThreadInfos,
-  LegacyMemberInfo,
 } from '../types/thread-types.js';
 import { updateTypes } from '../types/update-types-enum.js';
 import { type ClientUpdateInfo } from '../types/update-types.js';
@@ -525,14 +524,12 @@
         thinThreadType,
       ),
       community: getCommunity(parentThreadInfo),
-      members: members.map(member =>
-        minimallyEncodeMemberInfo<LegacyMemberInfo>({
-          id: member.id,
-          role: role.id,
-          permissions: membershipPermissions,
-          isSender: false,
-        }),
-      ),
+      members: members.map(member => ({
+        id: member.id,
+        role: role.id,
+        minimallyEncoded: true,
+        isSender: false,
+      })),
       roles: {
         [role.id]: role,
       },