diff --git a/.eslintrc.json b/.eslintrc.json
index 440d63a..d84d9fb 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -1,5 +1,19 @@
 {
-  "extends": ["prettier"],
+  "$schema": "https://json.schemastore.org/eslintrc",
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:@typescript-eslint/recommended-requiring-type-checking",
+    "prettier"
+  ],
+  "overrides": [
+    {
+      "files": ["*.ts", "*.tsx"],
+      "parserOptions": {
+        "project": ["./tsconfig.json"]
+      }
+    }
+  ],
   "root": true,
   "parser": "@typescript-eslint/parser",
   "parserOptions": {
@@ -8,11 +22,12 @@
   },
   "plugins": ["@typescript-eslint"],
   "rules": {
-    "@typescript-eslint/naming-convention": "warn",
-    "@typescript-eslint/semi": "warn",
-    "curly": "warn",
-    "eqeqeq": "warn",
-    "no-throw-literal": "warn",
+    "@typescript-eslint/explicit-function-return-type": "error",
+    "@typescript-eslint/naming-convention": "error",
+    "@typescript-eslint/semi": "error",
+    "curly": "error",
+    "eqeqeq": "error",
+    "no-throw-literal": "error",
     "semi": "off"
   },
   "ignorePatterns": ["out", "dist", "**/*.d.ts"]
diff --git a/.prettierrc.json b/.prettierrc.json
index ac088b2..31aefcf 100644
--- a/.prettierrc.json
+++ b/.prettierrc.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json.schemastore.org/prettierrc",
+  "$schema": "https://json.schemastore.org/prettierrc",
   "printWidth": 140,
   "singleQuote": true
 }
diff --git a/package-lock.json b/package-lock.json
index 9fb6e0a..1c58d8c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,6 +26,7 @@
         "typescript": "^4.4.3"
       },
       "engines": {
+        "node": "^16",
         "vscode": "^1.61.0"
       }
     },
diff --git a/src/extension.ts b/src/extension.ts
index d313432..22569d4 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -2,11 +2,13 @@ import { commands, ExtensionContext } from 'vscode';
 import { DebuggerPanel } from './webview/debugger-panel';
 import { VisjsPanelView } from './webview/panel-views/visjs-panel-view';
 
-export function activate(context: ExtensionContext) {
+export function activate(context: ExtensionContext): void {
   new Extension(context);
 }
 
-export function deactivate() {}
+export function deactivate(): void {
+  //  Do nothing
+}
 
 class Extension {
   private debuggerPanel: DebuggerPanel;
diff --git a/src/test/runTest.ts b/src/test/runTest.ts
index 014c3a2..72000f4 100644
--- a/src/test/runTest.ts
+++ b/src/test/runTest.ts
@@ -2,7 +2,7 @@ import * as path from 'path';
 
 import { runTests } from '@vscode/test-electron';
 
-async function main() {
+async function main(): Promise<void> {
   try {
     // The folder containing the Extension Manifest package.json
     // Passed to `--extensionDevelopmentPath`
@@ -20,4 +20,4 @@ async function main() {
   }
 }
 
-main();
+void main();
diff --git a/src/test/suite/extension.test.ts b/src/test/suite/extension.test.ts
index 17e2eab..8ab2485 100644
--- a/src/test/suite/extension.test.ts
+++ b/src/test/suite/extension.test.ts
@@ -6,7 +6,7 @@ import * as vscode from 'vscode';
 // import * as myExtension from '../../extension';
 
 suite('Extension Test Suite', () => {
-  vscode.window.showInformationMessage('Start all tests.');
+  void vscode.window.showInformationMessage('Start all tests.');
 
   test('Sample test', () => {
     assert.strictEqual(-1, [1, 2, 3].indexOf(5));
diff --git a/src/webview/debugger-panel.ts b/src/webview/debugger-panel.ts
index 40d6bd5..4d7b351 100644
--- a/src/webview/debugger-panel.ts
+++ b/src/webview/debugger-panel.ts
@@ -21,7 +21,7 @@ export class DebuggerPanel {
 
     this.viewPanel.webview.html = this.panelViewProxy.getHtml();
 
-    this.viewPanel.webview.postMessage(this.panelViewProxy.updatePanel());
+    void this.viewPanel.webview.postMessage(this.panelViewProxy.updatePanel());
   }
 
   private teardownPanel(): void {
diff --git a/src/webview/panel-views/panel-view-proxy.ts b/src/webview/panel-views/panel-view-proxy.ts
index c1c899b..fe542ca 100644
--- a/src/webview/panel-views/panel-view-proxy.ts
+++ b/src/webview/panel-views/panel-view-proxy.ts
@@ -4,6 +4,6 @@ export interface PanelViewProxy {
 }
 
 export interface UpdatePanelViewCommand {
-  [key: string]: any;
+  [key: string]: unknown;
   command: string;
 }