diff --git a/frontend/src/api/admin/accounts.ts b/frontend/src/api/admin/accounts.ts
index d0ec12c364..2f9625b430 100644
--- a/frontend/src/api/admin/accounts.ts
+++ b/frontend/src/api/admin/accounts.ts
@@ -560,7 +560,9 @@ export async function syncFromCrs(params: {
       action: string
       error?: string
     }>
-  }>('/admin/accounts/sync/crs', params)
+  }>('/admin/accounts/sync/crs', params, {
+    timeout: 180000 // 180s timeout: sync refreshes each existing account's OAuth token serially
+  })
   return data
 }