diff --git a/packages/framework/fluid-framework/api-report/fluid-framework.beta.api.md b/packages/framework/fluid-framework/api-report/fluid-framework.beta.api.md
index 067fa2b38fa1..f184dfc6c43e 100644
--- a/packages/framework/fluid-framework/api-report/fluid-framework.beta.api.md
+++ b/packages/framework/fluid-framework/api-report/fluid-framework.beta.api.md
@@ -758,8 +758,8 @@ export interface TreeArrayNodeUnsafe<TAllowedTypes extends Unenforced<ImplicitAl
 
 // @public @sealed
 export interface TreeChangeEvents {
-    nodeChanged({ changedProperties }: {
-        changedProperties: ReadonlySet<string>;
+    nodeChanged({ changedProperties, }: {
+        readonly changedProperties: ReadonlySet<string>;
     }): void;
     treeChanged(): void;
 }
diff --git a/packages/framework/fluid-framework/api-report/fluid-framework.legacy.alpha.api.md b/packages/framework/fluid-framework/api-report/fluid-framework.legacy.alpha.api.md
index 2c5980e4d65f..91fc4bb3eef8 100644
--- a/packages/framework/fluid-framework/api-report/fluid-framework.legacy.alpha.api.md
+++ b/packages/framework/fluid-framework/api-report/fluid-framework.legacy.alpha.api.md
@@ -1155,8 +1155,8 @@ export interface TreeArrayNodeUnsafe<TAllowedTypes extends Unenforced<ImplicitAl
 
 // @public @sealed
 export interface TreeChangeEvents {
-    nodeChanged({ changedProperties }: {
-        changedProperties: ReadonlySet<string>;
+    nodeChanged({ changedProperties, }: {
+        readonly changedProperties: ReadonlySet<string>;
     }): void;
     treeChanged(): void;
 }
diff --git a/packages/framework/fluid-framework/api-report/fluid-framework.legacy.public.api.md b/packages/framework/fluid-framework/api-report/fluid-framework.legacy.public.api.md
index 7052843b6d09..d9243b75affc 100644
--- a/packages/framework/fluid-framework/api-report/fluid-framework.legacy.public.api.md
+++ b/packages/framework/fluid-framework/api-report/fluid-framework.legacy.public.api.md
@@ -798,8 +798,8 @@ export interface TreeArrayNodeUnsafe<TAllowedTypes extends Unenforced<ImplicitAl
 
 // @public @sealed
 export interface TreeChangeEvents {
-    nodeChanged({ changedProperties }: {
-        changedProperties: ReadonlySet<string>;
+    nodeChanged({ changedProperties, }: {
+        readonly changedProperties: ReadonlySet<string>;
     }): void;
     treeChanged(): void;
 }
diff --git a/packages/framework/fluid-framework/api-report/fluid-framework.public.api.md b/packages/framework/fluid-framework/api-report/fluid-framework.public.api.md
index b1daaf40e321..21d6fc066f72 100644
--- a/packages/framework/fluid-framework/api-report/fluid-framework.public.api.md
+++ b/packages/framework/fluid-framework/api-report/fluid-framework.public.api.md
@@ -758,8 +758,8 @@ export interface TreeArrayNodeUnsafe<TAllowedTypes extends Unenforced<ImplicitAl
 
 // @public @sealed
 export interface TreeChangeEvents {
-    nodeChanged({ changedProperties }: {
-        changedProperties: ReadonlySet<string>;
+    nodeChanged({ changedProperties, }: {
+        readonly changedProperties: ReadonlySet<string>;
     }): void;
     treeChanged(): void;
 }