diff --git a/DESCRIPTION b/DESCRIPTION
index eb5bb6f..fde05ce 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -47,6 +47,7 @@ VignetteBuilder:
 Remotes: 
     Public-Health-Scotland/phsmethods
 Config/testthat/edition: 3
+Config/testthat/parallel: true
 Encoding: UTF-8
 Language: en-GB
 LazyData: true