diff --git a/notes-on-testing.md b/notes-on-testing.md
index fe18b9d..d1501ce 100644
--- a/notes-on-testing.md
+++ b/notes-on-testing.md
@@ -3,8 +3,7 @@
 - according to the mattermost discussion of 13/14 dec, there may be variations of illustration size used on mailbox screens - normal, short and none... if that decision is made, then that will need to be tested too
 
 - discussion on the MM 20/12 - error handling.  Find out how to trigger each error response mentioned, to verify that they are handled correctly.
-
-[Maibox_coverage_matrix.ods](uploads/7f8c76226ccaf1c1cc21ba0e8476f3e8/Maibox_coverage_matrix.ods)
+[Maibox_coverage_matrix.ods](uploads/ef74c177f5f3ad5c31197c6ec0508152/Maibox_coverage_matrix.ods)