diff --git a/offsite-power-check.sh b/offsite-power-check.sh
index 0f187089..36e10021 100755
--- a/offsite-power-check.sh
+++ b/offsite-power-check.sh
@@ -109,7 +109,15 @@ case $1 in
 	restart) PWO_RESTART;;
 	update)
 		cd ${PW_TMPFOLDER}
-		git pull
+		if [ "`git log --pretty=%H ...refs/heads/master^ | head -n 1`" != "`git ls-remote origin -h refs/heads/master |cut -f1`" ]; then
+			git fetch origin master >/dev/null 2>&1
+			git reset --hard origin/master >/dev/null 2>&1
+			git reflog expire --expire=now --all >/dev/null 2>&1
+			git repack -ad >/dev/null 2>&1
+			git prune >/dev/null 2>&1
+			git pull >/dev/null 2>&1
+			# /bin/chmod +x /opt/idssys/powerwall/offsite-power-check.sh 2>&1
+		fi
 	;;
 esac