diff --git a/.github/workflows/xm530_images.yml b/.github/workflows/xm530_images.yml
index 134af4c8..30210ebe 100644
--- a/.github/workflows/xm530_images.yml
+++ b/.github/workflows/xm530_images.yml
@@ -3,7 +3,7 @@ name: OpenIPC for XM530
 on:
   push:
     branches:
-      - dev
+      - xm530
     tags:
       - "v*"
 
diff --git a/Makefile b/Makefile
index ff928c77..c093b2bd 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-xiongmai
+BR_EXT_DIR    := $(ROOT_DIR)/br-ext-chip-hisilicon
+#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/general/overlay/usr/lib/libjson-c.so.2 b/general/overlay/usr/lib/libjson-c.so.2
index c8352060..92f56419 120000
--- a/general/overlay/usr/lib/libjson-c.so.2
+++ b/general/overlay/usr/lib/libjson-c.so.2
@@ -1 +1 @@
-/usr/lib/libjson-c.so.5
\ No newline at end of file
+/usr/lib/libjson-c.so.4
\ No newline at end of file