diff --git a/Makefile b/Makefile
index e6191af2..14c61e1e 100644
--- a/Makefile
+++ b/Makefile
@@ -2,8 +2,8 @@
 ROOT_DIR      := $(CURDIR)
 BR_VER        := 2020.02
 BR_DIR        := $(ROOT_DIR)/buildroot-$(BR_VER)
-BR_EXT_DIR    := $(ROOT_DIR)/br-ext-chip-hisilicon
-#BR_EXT_DIR    := $(ROOT_DIR)/br-ext-chip-sigmastar
+#BR_EXT_DIR    := $(ROOT_DIR)/br-ext-chip-hisilicon
+BR_EXT_DIR    := $(ROOT_DIR)/br-ext-chip-sigmastar
 #BR_EXT_DIR    := $(ROOT_DIR)/br-ext-chip-xiongmai
 SCRIPTS_DIR   := $(ROOT_DIR)/scripts
 BOARDS        := $(shell ls -1 $(BR_EXT_DIR)/configs)
diff --git a/br-ext-chip-sigmastar/configs/unknown_unknown_ssc313e_openipc_defconfig b/br-ext-chip-sigmastar/configs/unknown_unknown_ssc313e_openipc_defconfig
index f0a420e3..6df1464a 100644
--- a/br-ext-chip-sigmastar/configs/unknown_unknown_ssc313e_openipc_defconfig
+++ b/br-ext-chip-sigmastar/configs/unknown_unknown_ssc313e_openipc_defconfig
@@ -1,6 +1,6 @@
 
 # OpenIPC configuration
 BR2_TOOLCHAIN_BUILDROOT_VENDOR="openipc"
-BR2_TARGET_GENERIC_ISSUE="Welcome to OpenIPC v21.04.22.1"
+BR2_TARGET_GENERIC_ISSUE="Welcome to OpenIPC v21.04.22.2"
 BR2_TARGET_GENERIC_HOSTNAME="ipcam"
 BR2_GLOBAL_PATCH_DIR="$(TOPDIR)/../general/package/patches"
diff --git a/br-ext-chip-sigmastar/configs/unknown_unknown_ssc335_openipc_defconfig b/br-ext-chip-sigmastar/configs/unknown_unknown_ssc335_openipc_defconfig
index f0a420e3..6df1464a 100644
--- a/br-ext-chip-sigmastar/configs/unknown_unknown_ssc335_openipc_defconfig
+++ b/br-ext-chip-sigmastar/configs/unknown_unknown_ssc335_openipc_defconfig
@@ -1,6 +1,6 @@
 
 # OpenIPC configuration
 BR2_TOOLCHAIN_BUILDROOT_VENDOR="openipc"
-BR2_TARGET_GENERIC_ISSUE="Welcome to OpenIPC v21.04.22.1"
+BR2_TARGET_GENERIC_ISSUE="Welcome to OpenIPC v21.04.22.2"
 BR2_TARGET_GENERIC_HOSTNAME="ipcam"
 BR2_GLOBAL_PATCH_DIR="$(TOPDIR)/../general/package/patches"