---
version: "v1.0.7"
category: "bug-fixes"
---

#### the `--parallelism` flag no longer accepts non-positive numbers

Previously, terragrunt commands that accept the --parallelism flag (or equivalently the `$TG_PARALLELISM` environment variable) used to hang indefinitely when invoked with `--parallelism=0`.

Terragrunt now validates that the value is positive and exits with an error otherwise.

Reported in [#6211](https://github.com/gruntwork-io/terragrunt/issues/6211)
