diff --git a/config/telink/app/zephyr.conf b/config/telink/app/zephyr.conf
index ec5f0ad..e7a211b 100644
--- a/config/telink/app/zephyr.conf
+++ b/config/telink/app/zephyr.conf
@@ -117,7 +117,7 @@
 
 # Enable NVS lookup cache
 CONFIG_NVS_LOOKUP_CACHE=y
-CONFIG_NVS_LOOKUP_CACHE_SIZE=512
+CONFIG_NVS_LOOKUP_CACHE_SIZE=2048
 
 # Reboot system when fault happened
 CONFIG_TELINK_B91_REBOOT_ON_FAULT=y