diff --git a/root/etc/cont-init.d/20-script-update.bash b/root/etc/cont-init.d/20-script-update.bash
new file mode 100644
index 0000000..56bd2ea
--- /dev/null
+++ b/root/etc/cont-init.d/20-script-update.bash
@@ -0,0 +1,9 @@
+#!/usr/bin/with-contenv bash
+
+# update from git
+if [[ "${UPDATE}" == "true" ]]; then
+    git -C ${SABSCRIPTS_PATH} pull origin master && \
+    git -C ${SMA_PATH} pull origin master
+fi
+
+exit 0