diff --git a/doc/qa/test-guidelines.md b/doc/qa/test-guidelines.md
index 449276b4a..831c3f6ba 100644
--- a/doc/qa/test-guidelines.md
+++ b/doc/qa/test-guidelines.md
@@ -9,7 +9,7 @@ This document describes recommended testing strategies for the Elsa engine. It i
 
 1. **Deterministic tests** — tests should not be flaky and should produce the same results independent of circumstance.
 2. **Fast feedback** — unit and integration tests should run quickly to support local workflows and CI.
-3. **Minimal reliance on real delays** — avoid `Thread.Sleep` or real clocks except where unavoidable; prefer event-driven assertions.
+3. **Minimal reliance on real delays** — avoid `Task.Delay`, `Thread.Sleep` or real clocks except where unavoidable; prefer event-driven assertions.
 4. **Environment portability** — tests should run in local dev, Docker or any other container CI environment with minimal changes.
 5. **Version alignment** — workflow definition versions and test artifacts must be explicitly linked so tests refer to a specific workflow blueprint version.
 6. **Bulk provisioning & isolation** — tests should support bulk import of workflow definitions for large-suite runs and ensure clean, isolated state per test.