diff --git a/README.md b/README.md
index 85a21b8..ed5e69e 100644
--- a/README.md
+++ b/README.md
@@ -25,11 +25,11 @@ packer build -var vm_name=sonoma-vanilla templates/disable-sip.pkr.hcl
 ## Building Base Image
 
 ```bash
-packer build -var-file="variables.pkrvars.hcl" templates/base.pkr.hcl
+packer build -var macos_version=sonoma templates/base.pkr.hcl
 ```
 
 ## Building Xcode Image
 
 ```bash
-packer build -var-file="variables.pkrvars.hcl" templates/xcode.pkr.hcl
+packer build -var macos_version=sonoma -var xcode_version=15.3 templates/xcode.pkr.hcl
 ```