@@ -24,11 +24,11 @@ import {
     IUnitTestSettings,
     IWorkspaceSymbolSettings
 } from './types';
+import { debounce } from './utils/decorators';
 import { SystemVariables } from './variables/systemVariables';
 
 // tslint:disable:no-require-imports no-var-requires
 const untildify = require('untildify');
-const _debounce = require('lodash/debounce') as typeof import('lodash/debounce');
 
 export class PythonSettings extends EventEmitter implements IPythonSettings {
     private static pythonSettings: Map<string, PythonSettings> = new Map<string, PythonSettings>();
@@ -377,7 +377,7 @@ export class PythonSettings extends EventEmitter implements IPythonSettings {
 
             // If workspace config changes, then we could have a cascading effect of on change events.
             // Let's defer the change notification.
-            _debounce(() => this.emit('change'), 1);
+            this.debounceChangeNotification();
         };
         this.disposables.push(this.InterpreterAutoSelectionService.onDidChangeAutoSelectedInterpreter(onDidChange.bind(this)));
         this.disposables.push(this.workspace.onDidChangeConfiguration((event: ConfigurationChangeEvent) => {
@@ -391,6 +391,10 @@ export class PythonSettings extends EventEmitter implements IPythonSettings {
             this.update(initialConfig);
         }
     }
+    @debounce(1)
+    protected debounceChangeNotification() {
+        this.emit('change');
+    }
 }
 
 function getAbsolutePath(pathToCheck: string, rootDir: string): string {