diff --git a/install.sh b/install.sh
index f1891a2..d4e8f4f 100644
--- a/install.sh
+++ b/install.sh
@@ -1,4 +1,4 @@
-#!/bin/zsh
+#!/bin/bash
 
 if ! command -v brew >/dev/null 2>&1; then
   echo "Homebrew is not installed. Please install Homebrew first: https://brew.sh/"
@@ -40,7 +40,7 @@ library_urls=(
 )
 
 # Clone or update each library
-for i in {1..${#library_names[@]}}; do
+for ((i = 0; i < ${#library_names[@]}; i++)); do
   lib="${library_names[$i]}"
   url="${library_urls[$i]}"
   if ! [ -d "$lib" ]; then
@@ -59,7 +59,7 @@ if ! command -v openscad >/dev/null 2>&1; then
 fi
 
 # Verify library setup
-for lib in $library_names; do
+for lib in "${library_names[@]}"; do
   if [ ! -d "$lib" ]; then
     echo "Library $lib setup failed. Verify git and directory permissions."
     exit 1