diff --git a/scripts/find_version.sh b/scripts/find_version.sh
index 8f6e43395..d3a39d01b 100755
--- a/scripts/find_version.sh
+++ b/scripts/find_version.sh
@@ -1,8 +1,4 @@
-#!/bin/bash
-# Credit: https://stackoverflow.com/a/4774063
-SCRIPTPATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
-TMPENVFILE=$(mktemp /tmp/lvgl.script.XXXXXX)
-cat $SCRIPTPATH/../lv_version.h | grep "#define LVGL_VERSION_" | sed 's/#define //g' | sed -r 's/\s+/=/' > $TMPENVFILE
-. $TMPENVFILE
-rm $TMPENVFILE
-echo $LVGL_VERSION_MAJOR.$LVGL_VERSION_MINOR
+#!/bin/sh
+
+SCRIPTPATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 || exit ; pwd -P )"
+sed -n '/LVGL_VERSION_MAJOR/ {N;s@#define \+LVGL_VERSION_M.... \+@@g;s@\n@.@p}' "$SCRIPTPATH/../lv_version.h"