diff --git a/scripts/delete_old_version_docs.sh b/scripts/delete_old_version_docs.sh
index 68cb1b3..0f4c637 100755
--- a/scripts/delete_old_version_docs.sh
+++ b/scripts/delete_old_version_docs.sh
@@ -1,4 +1,4 @@
-#!/bin/zsh
+#!/bin/bash
 
 versions=($(mike list | tr ' ' '\n'))