diff --git a/examples/tools/power.py b/examples/tools/power.py
new file mode 100644
index 00000000..f3879e9a
--- /dev/null
+++ b/examples/tools/power.py
@@ -0,0 +1,7 @@
+import os
+
+# cmd = "reboot"
+cmd = "poweroff"
+
+os.system(cmd)
+
diff --git a/maix/version.py b/maix/version.py
index 419e59ab..22f68f50 100644
--- a/maix/version.py
+++ b/maix/version.py
@@ -3,6 +3,6 @@
 
 version_major = 4
 version_minor = 7
-version_patch = 2
+version_patch = 3
 
 __version__ = "{}.{}.{}".format(version_major, version_minor, version_patch)
diff --git a/tools/os/base_system_version.txt b/tools/os/base_system_version.txt
index 19e4e2c6..10ec58ee 100644
--- a/tools/os/base_system_version.txt
+++ b/tools/os/base_system_version.txt
@@ -1 +1 @@
-20241017
\ No newline at end of file
+20241021
\ No newline at end of file