diff --git a/tests/TLS.Tests.ps1 b/tests/TLS.Tests.ps1
index b032549..96bd4b5 100644
--- a/tests/TLS.Tests.ps1
+++ b/tests/TLS.Tests.ps1
@@ -1,4 +1,6 @@
-[Diagnostics.CodeAnalysis.SuppressMessageAttribute(
+#Requires -Modules @{ ModuleName = 'Pester'; ModuleVersion = '6.0.0'; MaximumVersion = '6.*' }
+
+[Diagnostics.CodeAnalysis.SuppressMessageAttribute(
     'PSUseDeclaredVarsMoreThanAssignments', '',
     Justification = 'Pester code blocks'
 )]