diff --git a/fetch-tweets.sh b/fetch-tweets.sh
index 765b353..8a0331b 100755
--- a/fetch-tweets.sh
+++ b/fetch-tweets.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 # vim: set ts=4 sw=4
 
 umask 002