diff --git a/examples/system/ota/advanced_https_ota/sdkconfig.ci.anti_rollback b/examples/system/ota/advanced_https_ota/sdkconfig.ci.anti_rollback
index 953b74d2cf..62a6c151f1 100644
--- a/examples/system/ota/advanced_https_ota/sdkconfig.ci.anti_rollback
+++ b/examples/system/ota/advanced_https_ota/sdkconfig.ci.anti_rollback
@@ -6,8 +6,8 @@ CONFIG_PARTITION_TABLE_CUSTOM=y
 CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="anti_rollback_partition.csv"
 CONFIG_PARTITION_TABLE_FILENAME="anti_rollback_partition.csv"
 CONFIG_PARTITION_TABLE_OFFSET=0xd000
-CONFIG_ESPTOOLPY_FLASHSIZE_16MB=y
-CONFIG_ESPTOOLPY_FLASHSIZE="16MB"
+CONFIG_ESPTOOLPY_FLASHSIZE_8MB=y
+CONFIG_ESPTOOLPY_FLASHSIZE="8MB"
 CONFIG_BOOTLOADER_APP_ROLLBACK_ENABLE=y
 CONFIG_BOOTLOADER_APP_ANTI_ROLLBACK=y
 CONFIG_BOOTLOADER_APP_SECURE_VERSION=1