diff --git a/update.sh b/update.sh
index 7fb5db6..f27e6ea 100755
--- a/update.sh
+++ b/update.sh
@@ -1,3 +1,4 @@
+#! /usr/bin/env sh
 # Copyright (C) 2023 - 2024:
 # The Trinitrix Project <soispha@vhack.eu, antifallobst@systemausfall.org>
 #