diff --git a/test_docker.sh b/test_docker.sh
index b608760..1435df7 100755
--- a/test_docker.sh
+++ b/test_docker.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -eo pipefail
 
 # Colors for terminal output
@@ -48,6 +48,12 @@ if ! command -v docker-compose > /dev/null 2>&1; then
   exit 1
 fi
 
+# Check if jq is available
+if ! command -v jq > /dev/null 2>&1; then
+  log "ERROR" "jq command not found. Please install jq (JSON processor)."
+  exit 1
+fi
+
 # Build the Docker image
 log "INFO" "Building Docker image..."
 docker-compose build
@@ -171,27 +177,27 @@ root_token=$(jq -r '.root_token' vault-credentials.json)
 
 # First, try running 'vault operator unseal' directly for a more robust test
 log "INFO" "Attempting to unseal Vault directly with unseal keys..."
-# Using an array to capture the keys
-readarray -t key_array <<< "$unseal_keys"
+# Split the keys - more portable than readarray which isn't available in all shells
+key1=$(echo "$unseal_keys" | head -n 1)
+key2=$(echo "$unseal_keys" | head -n 2 | tail -n 1)
+key3=$(echo "$unseal_keys" | head -n 3 | tail -n 1)
 
-for key in "${key_array[@]}"; do
-  log "INFO" "Applying unseal key: ${key:0:8}..." # Show only first 8 chars for security
-  docker-compose exec -T vault env VAULT_ADDR=http://127.0.0.1:8200 vault operator unseal "$key"
+# Apply each key
+for key in "$key1" "$key2" "$key3"; do
+  if [ -n "$key" ]; then
+    log "INFO" "Applying unseal key: ${key:0:8}..." # Show only first 8 chars for security
+    docker-compose exec -T vault env VAULT_ADDR=http://127.0.0.1:8200 vault operator unseal "$key"
+  fi
 done
 
 # As a fallback, also try running vault-init with environment variables
 log "INFO" "Starting vault-init with environment variables..."
-# Check how many keys we have
-key_count=${#key_array[@]}
-env_vars="-e VAULT_ADDR=http://vault:8200"
-
-# Add each key to environment variables
-for i in $(seq 0 $((key_count-1))); do
-  env_vars="$env_vars -e VAULT_UNSEAL_KEY_$((i+1))=${key_array[$i]}"
-done
-
-# Run the command with all environment variables
-docker-compose run $env_vars --rm vault-init
+# Use simpler variable passing - more portable
+docker-compose run -e VAULT_ADDR=http://vault:8200 \
+  -e VAULT_UNSEAL_KEY_1="$key1" \
+  -e VAULT_UNSEAL_KEY_2="$key2" \
+  -e VAULT_UNSEAL_KEY_3="$key3" \
+  --rm vault-init
 
 # Verify Vault is unsealed now
 vault_status=$(docker-compose exec -T vault env VAULT_ADDR=http://127.0.0.1:8200 vault status -format=json 2>/dev/null || echo '{"sealed": true}')
diff --git a/test_local.sh b/test_local.sh
index 903eb64..67f85e2 100755
--- a/test_local.sh
+++ b/test_local.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 
 # Detect OS and handle accordingly