diff --git a/DESCRIPTION b/DESCRIPTION
index 6028b2b..55861b1 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -34,5 +34,6 @@ URL: https://rmgpanw.github.io/trud/,
     https://github.com/rmgpanw/trud
 BugReports: https://github.com/rmgpanw/trud/issues
 Suggests: 
-    testthat (>= 3.0.0)
+    testthat (>= 3.0.0),
+    withr
 Config/testthat/edition: 3