diff --git a/zimfarm/api/api-configs.cm.yaml b/zimfarm/api/api-configs.cm.yaml
index a72bf13..5fb36ad 100644
--- a/zimfarm/api/api-configs.cm.yaml
+++ b/zimfarm/api/api-configs.cm.yaml
@@ -20,6 +20,8 @@ data:
   PLATFORM_devdocs_MAX_TASKS_PER_WORKER: "1"
   PLATFORM_shamela_MAX_TASKS_PER_WORKER: "1"
   PLATFORM_shamela_MAX_TASKS_TOTAL: "1"
+  PLATFORM_libretexts_MAX_TASKS_PER_WORKER: "1"
+  PLATFORM_libretexts_MAX_TASKS_TOTAL: "1"
   # log and ZIM uploads. log-upload uri in secret (token inside)
   ZIM_UPLOAD_URI: "sftp://uploader@warehouse.farm.openzim.org:30122/zim"
   LOGS_EXPIRATION: "60"