diff --git a/deploy/weechat.sh b/deploy/weechat.sh
index 88f8e75e..2473cbc0 100755
--- a/deploy/weechat.sh
+++ b/deploy/weechat.sh
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/usr/bin/env sh
 
 # Simple script to deploy certificates for Weechat relay servers
 #