diff --git a/NEWS b/NEWS
index 112379028..0ab2377f4 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,7 @@
  * Part of #125: Color borgmatic (but not Borg) output when using an interactive terminal.
  * #168: Update README with continuous integration badge.
  * Document installing borgmatic with pip install --user instead of a system Python install.
+ * Get more reproducible builds by pinning the version of tox used to run tests.
 
 1.3.3
  * Add validate-borgmatic-config command, useful for validating borgmatic config generated by