diff --git a/CHANGES.md b/CHANGES.md
index 3d1f07059c9..27313c2c561 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -15,6 +15,8 @@ To be released.
  -  Removed the '#nullable disable' from the Libplanet.Store project. [[#3644]]
  -  Removed the '#nullable disable' from the Libplanet.RocksDBStore project.
     [[#3651]]
+ -  Removed the '#nullable disable' from transport-related code in the
+    Libplanet.Net project.  [[#3671]]
 
 ### Backward-incompatible network protocol changes
 
@@ -33,6 +35,7 @@ To be released.
 [#3622]: https://github.com/planetarium/libplanet/pull/3622
 [#3644]: https://github.com/planetarium/libplanet/pull/3644
 [#3651]: https://github.com/planetarium/libplanet/pull/3651
+[#3671]: https://github.com/planetarium/libplanet/pull/3671
 
 
 Version 4.0.4