diff --git a/changelog.md b/changelog.md
index c35a403e6f..770393e133 100644
--- a/changelog.md
+++ b/changelog.md
@@ -22,7 +22,7 @@
 - `addr` is now available for all addressable locations, `unsafeAddr` is deprecated and
 becomes an alias for `addr`.
 
-- io is about to move out of system; use `-d:nimPreviewSlimSystem` and import `std/syncio`.
+- `io` and `assertions` are about to move out of system; use `-d:nimPreviewSlimSystem`, import `std/syncio` and import `std/assertions`.
 
 - The `gc:v2` option is removed.