diff --git a/backend/functions/src/cloud-functions/crawler.ts b/backend/functions/src/cloud-functions/crawler.ts
index d235777..b71f71a 100644
--- a/backend/functions/src/cloud-functions/crawler.ts
+++ b/backend/functions/src/cloud-functions/crawler.ts
@@ -138,7 +138,7 @@ export class CrawlerHost extends RPCHost {
             memory: '4GiB',
             cpu: 2,
             timeoutSeconds: 300,
-            concurrency: 16,
+            concurrency: 8,
             maxInstances: 1250,
             minInstances: 1,
         },
diff --git a/thinapps-shared b/thinapps-shared
index 231d167..efa6da6 160000
--- a/thinapps-shared
+++ b/thinapps-shared
@@ -1 +1 @@
-Subproject commit 231d1676b02f8aee7a22ee20c50b9b346c08eca0
+Subproject commit efa6da6ff1c9a4e2841c50a722a0ae2283be827c