diff --git a/src/vs/workbench/browser/parts/editor/breadcrumbsControl.ts b/src/vs/workbench/browser/parts/editor/breadcrumbsControl.ts
index 25cc536c30d31587646c0a729f8a37c28c10a64e..1ea22c49456343f831665be15e23a57f335d10f8 100644
--- a/src/vs/workbench/browser/parts/editor/breadcrumbsControl.ts
+++ b/src/vs/workbench/browser/parts/editor/breadcrumbsControl.ts
@@ -470,7 +470,7 @@ export class BreadcrumbsControl {
 		this._ckBreadcrumbsActive.set(value);
 	}
 
-	private _revealInEditor(event: IBreadcrumbsItemEvent, element: any, group: SIDE_GROUP_TYPE | ACTIVE_GROUP_TYPE | undefined, pinned: boolean = false): void {
+	private _revealInEditor(event: IBreadcrumbsItemEvent, element: BreadcrumbElement, group: SIDE_GROUP_TYPE | ACTIVE_GROUP_TYPE | undefined, pinned: boolean = false): void {
 		if (element instanceof FileElement) {
 			if (element.kind === FileKind.FILE) {
 				// open file in any editor
diff --git a/src/vs/workbench/common/contributions.ts b/src/vs/workbench/common/contributions.ts
index 4c6d4476740f0a2224ba53b6ae4d3a7c3129583e..1817e91d8411685e3c533af5968bf329739d6654 100644
--- a/src/vs/workbench/common/contributions.ts
+++ b/src/vs/workbench/common/contributions.ts
@@ -118,7 +118,7 @@ class WorkbenchContributionsRegistry implements IWorkbenchContributionsRegistry
 		try {
 			instantiationService.createInstance(ctor);
 		} catch (error) {
-			console.error(`Unable to instantiate workbench contribution ${(ctor as any).name}.`, error);
+			console.error(`Unable to instantiate workbench contribution ${ctor.name}.`, error);
 		}
 	}
 }
diff --git a/src/vs/workbench/common/editor.ts b/src/vs/workbench/common/editor.ts
index 8bcc3a2974cac2d61ab8c4a9b23fb3fe2f3ae4a0..0680822b4a29bbba90b57604956a880b06ba97ae 100644
--- a/src/vs/workbench/common/editor.ts
+++ b/src/vs/workbench/common/editor.ts
@@ -165,7 +165,7 @@ export interface IFileInputFactory {
 
 	createFileInput(resource: URI, encoding: string | undefined, mode: string | undefined, instantiationService: IInstantiationService): IFileEditorInput;
 
-	isFileInput(obj: any): obj is IFileEditorInput;
+	isFileInput(obj: unknown): obj is IFileEditorInput;
 }
 
 export interface IEditorInputFactoryRegistry {
diff --git a/src/vs/workbench/common/editor/editorGroup.ts b/src/vs/workbench/common/editor/editorGroup.ts
index 511a03b9376b2aedd079629c862058d9845b24fc..3ff8760e8e3c6aa241a344d545acb4e54a0971df 100644
--- a/src/vs/workbench/common/editor/editorGroup.ts
+++ b/src/vs/workbench/common/editor/editorGroup.ts
@@ -45,8 +45,8 @@ export interface ISerializedEditorGroup {
 	preview?: number;
 }
 
-export function isSerializedEditorGroup(obj?: any): obj is ISerializedEditorGroup {
-	const group: ISerializedEditorGroup = obj;
+export function isSerializedEditorGroup(obj?: unknown): obj is ISerializedEditorGroup {
+	const group = obj as ISerializedEditorGroup;
 
 	return obj && typeof obj === 'object' && Array.isArray(group.editors) && Array.isArray(group.mru);
 }