diff --git a/action.yml b/action.yml
index ea170be..7ddd20e 100644
--- a/action.yml
+++ b/action.yml
@@ -11,7 +11,9 @@ inputs:
     required: false
   terraform_version:
     description: 'The version of Terraform CLI to install. Instead of full version string you can also specify constraint string starting with "<" (for example `<1.13.0`) to install the latest version satisfying the constraint. A value of `latest` will install the latest version of Terraform CLI. Defaults to `latest`.'
-    default: 'latest'
+    required: false
+  terraform_version_file:
+    description: 'The path to the `.terraform-version` file. See examples of supported syntax in README file'
     required: false
   terraform_wrapper:
     description: 'Whether or not to install a wrapper to wrap subsequent calls of the `terraform` binary and expose its STDOUT, STDERR, and exit code as outputs named `stdout`, `stderr`, and `exitcode` respectively. Defaults to `true`.'