diff --git a/packages/aws-cdk-lib/aws-ecs/README.md b/packages/aws-cdk-lib/aws-ecs/README.md
index f0669e3adcc66..5cfd3e5c36ecb 100644
--- a/packages/aws-cdk-lib/aws-ecs/README.md
+++ b/packages/aws-cdk-lib/aws-ecs/README.md
@@ -85,6 +85,17 @@ const cluster = new ecs.Cluster(this, 'Cluster', {
 });
 ```
 
+To encrypt the fargate ephemeral storage configure a KMS key. 
+```ts
+declare const key: kms.Key;
+
+const cluster = new ecs.Cluster(this, 'Cluster', { 
+  managedStorageConfiguration: { 
+    fargateEphemeralStorageKmsKey: key,
+  },
+});
+```
+
 The following code imports an existing cluster using the ARN which can be used to
 import an Amazon ECS service either EC2 or Fargate.
 
@@ -1865,4 +1876,4 @@ taskDefinition.addContainer('TheContainer', {
     softLimit: 128,
   }],
 });
-```
\ No newline at end of file
+```