diff --git a/CHANGELOG.md b/CHANGELOG.md
index ae9c65068..16d618ad2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -46,6 +46,7 @@ IMPROVEMENTS:
  * client: Reduce unnecessary lost nodes on server failure [[GH-5654](https://github.com/hashicorp/nomad/issues/5654)]
  * client: Canary Promotion no longer causes services registered in Consul to become unhealthy [[GH-4566](https://github.com/hashicorp/nomad/issues/4566)]
  * client: Allow use of maintenance mode and externally registered checks against Nomad-registered consul services [[GH-4537](https://github.com/hashicorp/nomad/issues/4537)]
+ * driver/exec: Fixed an issue causing large memory consumption for light processes [[GH-5437](https://github.com/hashicorp/nomad/pull/5437)]
  * telemetry: Add `client.allocs.memory.allocated` metric to expose allocated task memory in bytes. [[GH-5492](https://github.com/hashicorp/nomad/issues/5492)]
  * ui: Colored log support [[GH-5620](https://github.com/hashicorp/nomad/issues/5620)]
  * ui: Upgraded from Ember 2.18 to 3.4 [[GH-5544](https://github.com/hashicorp/nomad/issues/5544)]