diff --git a/CHANGELOG.md b/CHANGELOG.md
index eae44edb2..b7beeed13 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,8 +5,8 @@
 ### Fixes
 
 - rename (fix typo) argument to `lcs_child_in_parent` in `CoordinateSystemManager.add_cs`  \[{pull}`936`\].
-
 - replace usages of `pkg_resources` with `importlib.metadata` \[{pull}`941`\].
+- replace usages of `copy_arrays` with `memmap` for `asdf>=3.1.0` \[{pull}`940`\].
 
 ### Dependencies