diff --git a/src/Umbraco.Web.UI.Client/libs/extensions-registry/models.ts b/src/Umbraco.Web.UI.Client/libs/extensions-registry/models.ts
index 4e9bd27adf..4d6afd1b54 100644
--- a/src/Umbraco.Web.UI.Client/libs/extensions-registry/models.ts
+++ b/src/Umbraco.Web.UI.Client/libs/extensions-registry/models.ts
@@ -22,7 +22,6 @@ import type { ManifestWorkspaceAction } from './workspace-action.models';
 import type { ManifestWorkspaceView } from './workspace-view.models';
 import type { ManifestWorkspaceViewCollection } from './workspace-view-collection.models';
 import type { ManifestRepository } from './repository.models';
-import type { ClassConstructor } from '@umbraco-cms/models';
 
 export * from './collection-view.models';
 export * from './dashboard-collection.models';
@@ -140,6 +139,8 @@ export interface ManifestWithMeta extends ManifestBase {
 	meta: unknown;
 }
 
+export type ClassConstructor<T> = new (...args: any[]) => T;
+
 export interface ManifestEntrypoint extends ManifestBase {
 	type: 'entrypoint';
 	js: string;
diff --git a/src/Umbraco.Web.UI.Client/libs/extensions-registry/tree.models.ts b/src/Umbraco.Web.UI.Client/libs/extensions-registry/tree.models.ts
index b0f83e99f7..a4576d7298 100644
--- a/src/Umbraco.Web.UI.Client/libs/extensions-registry/tree.models.ts
+++ b/src/Umbraco.Web.UI.Client/libs/extensions-registry/tree.models.ts
@@ -1,5 +1,4 @@
-import type { ManifestBase } from './models';
-import type { ClassConstructor } from '@umbraco-cms/models';
+import type { ClassConstructor, ManifestBase } from './models';
 
 export interface ManifestTree extends ManifestBase {
 	type: 'tree';
diff --git a/src/Umbraco.Web.UI.Client/libs/extensions-registry/workspace-action.models.ts b/src/Umbraco.Web.UI.Client/libs/extensions-registry/workspace-action.models.ts
index b18c358d5f..209e982f1d 100644
--- a/src/Umbraco.Web.UI.Client/libs/extensions-registry/workspace-action.models.ts
+++ b/src/Umbraco.Web.UI.Client/libs/extensions-registry/workspace-action.models.ts
@@ -1,7 +1,5 @@
 import type { InterfaceColor, InterfaceLook } from '@umbraco-ui/uui-base/lib/types/index';
-import type { ManifestElement } from './models';
-import { UmbWorkspaceAction } from '@umbraco-cms/workspace';
-import type { ClassConstructor } from '@umbraco-cms/models';
+import type { ClassConstructor, ManifestElement } from './models';
 
 export interface ManifestWorkspaceAction extends ManifestElement {
 	type: 'workspaceAction';
@@ -13,5 +11,5 @@ export interface MetaWorkspaceAction {
 	label?: string; //TODO: Use or implement additional label-key
 	look?: InterfaceLook;
 	color?: InterfaceColor;
-	api: ClassConstructor<UmbWorkspaceAction>;
+	api: ClassConstructor<any>;
 }
diff --git a/src/Umbraco.Web.UI.Client/libs/models/index.ts b/src/Umbraco.Web.UI.Client/libs/models/index.ts
index 6a677de13d..54fc943724 100644
--- a/src/Umbraco.Web.UI.Client/libs/models/index.ts
+++ b/src/Umbraco.Web.UI.Client/libs/models/index.ts
@@ -13,8 +13,6 @@ export * from '@umbraco-cms/extensions-registry';
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 export type HTMLElementConstructor<T = HTMLElement> = new (...args: any[]) => T;
 
-export type ClassConstructor<T> = new (...args: any[]) => T;
-
 // Users
 // TODO: would the right name be Node? as entity is just something with a Key. But node is something in a content structure, aka. with hasChildren and parentKey.
 export interface Entity {