diff --git a/keyserver/src/creators/role-creator.js b/keyserver/src/creators/role-creator.js
--- a/keyserver/src/creators/role-creator.js
+++ b/keyserver/src/creators/role-creator.js
@@ -150,6 +150,7 @@
     DESCENDANT + threadPermissions.EDIT_PERMISSIONS;
   const descendantRemoveMembers = DESCENDANT + threadPermissions.REMOVE_MEMBERS;
   const descendantChangeRole = DESCENDANT + threadPermissions.CHANGE_ROLE;
+  const descendantManagePins = DESCENDANT + threadPermissions.MANAGE_PINS;
 
   const baseAdminPermissions = {
     [threadPermissions.KNOW_OF]: true,
@@ -167,6 +168,7 @@
     [threadPermissions.DELETE_THREAD]: true,
     [threadPermissions.REMOVE_MEMBERS]: true,
     [threadPermissions.CHANGE_ROLE]: true,
+    [threadPermissions.MANAGE_PINS]: true,
     [descendantKnowOf]: true,
     [descendantVisible]: true,
     [topLevelDescendantJoinThread]: true,
@@ -183,6 +185,7 @@
     [descendantEditPermissions]: true,
     [descendantRemoveMembers]: true,
     [descendantChangeRole]: true,
+    [descendantManagePins]: true,
   };
 
   let adminPermissions;
diff --git a/keyserver/src/database/migration-config.js b/keyserver/src/database/migration-config.js
--- a/keyserver/src/database/migration-config.js
+++ b/keyserver/src/database/migration-config.js
@@ -287,6 +287,7 @@
       `);
     },
   ],
+  [25, updateRolesAndPermissionsForAllThreads],
 ]);
 const newDatabaseVersion: number = Math.max(...migrations.keys());
 
diff --git a/lib/types/thread-types.js b/lib/types/thread-types.js
--- a/lib/types/thread-types.js
+++ b/lib/types/thread-types.js
@@ -101,6 +101,7 @@
   LEAVE_THREAD: 'leave_thread',
   REACT_TO_MESSAGE: 'react_to_message',
   EDIT_MESSAGE: 'edit_message',
+  MANAGE_PINS: 'manage_pins',
 });
 export type ThreadPermission = $Values<typeof threadPermissions>;
 export function assertThreadPermissions(
@@ -125,7 +126,8 @@
       ourThreadPermissions === 'change_role' ||
       ourThreadPermissions === 'leave_thread' ||
       ourThreadPermissions === 'react_to_message' ||
-      ourThreadPermissions === 'edit_message',
+      ourThreadPermissions === 'edit_message' ||
+      ourThreadPermissions === 'manage_pins',
     'string is not threadPermissions enum',
   );
   return ourThreadPermissions;