diff --git a/dio/CHANGELOG.md b/dio/CHANGELOG.md
index ec6f7da73..197eb2f95 100644
--- a/dio/CHANGELOG.md
+++ b/dio/CHANGELOG.md
@@ -15,6 +15,7 @@ See the [Migration Guide][] for the complete breaking changes list.**
 - Improves `InterceptorState.toString()`.
 - If the `CancelToken` got canceled before making requests,
   throws the exception directly rather than cut actual HTTP requests afterward.
+- Improves memory allocating when using `CancelToken`.
 
 ## 5.4.3+1
 
diff --git a/plugins/http2_adapter/CHANGELOG.md b/plugins/http2_adapter/CHANGELOG.md
index 5d53eedc3..7c575dbb6 100644
--- a/plugins/http2_adapter/CHANGELOG.md
+++ b/plugins/http2_adapter/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-*None.*
+- Improves memory allocating when using `CancelToken`.
 
 ## 2.5.2