diff --git a/scripts/cask-update.sh b/scripts/cask-update.sh
index fbdc8d9322..a2ed83a005 100644
--- a/scripts/cask-update.sh
+++ b/scripts/cask-update.sh
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/usr/bin/env bash
 set -e
 
 # dependencies: