diff --git a/entrypoint.sh b/entrypoint.sh
index c668ecf..2ff5102 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,3 +1,3 @@
-#!/usr/bin/env bash
+#!/usr/bin/env sh
 echo $1 $2 $3 $4 $5
 rocketchat-notification -u $1 -p $2 -m $3 -s $4 -c $5