diff --git a/src/ts/toolbar/Headings.ts b/src/ts/toolbar/Headings.ts
index beaed5cae..f7e0032ea 100644
--- a/src/ts/toolbar/Headings.ts
+++ b/src/ts/toolbar/Headings.ts
@@ -37,8 +37,8 @@ export class Headings extends MenuItemClass {
         })
 
         for (let i = 0; i < 6; i++) {
-            headingsPanelElement.children.item(i).addEventListener('click', (event: any) => {
-                insertText(vditor.editor.element, event.target.getAttribute('data-value'), '')
+            headingsPanelElement.children.item(i).addEventListener('click', (event: Event) => {
+                insertText(vditor.editor.element, (<HTMLElement>event.target).getAttribute('data-value'), '')
                 headingsPanelElement.style.display = 'none'
             })
         }
diff --git a/src/ts/toolbar/index.ts b/src/ts/toolbar/index.ts
index eec6cb296..761588113 100644
--- a/src/ts/toolbar/index.ts
+++ b/src/ts/toolbar/index.ts
@@ -24,7 +24,7 @@ import {Record} from "./Record";
 import {Info} from "./Info";
 
 export class Toolbar {
-    elements: any
+    elements: { [key: string]: HTMLElement }
 
     constructor(vditor: Vditor) {
         const options = vditor.options
diff --git a/src/ts/types/index.d.ts b/src/ts/types/index.d.ts
index 4d69df74b..a989ed461 100644
--- a/src/ts/types/index.d.ts
+++ b/src/ts/types/index.d.ts
@@ -103,7 +103,7 @@ interface Vditor {
     mdTimeoutId: number
     options: Options
     toolbar?: {
-        elements?: { [key: string]: HTMLDivElement }
+        elements?: { [key: string]: HTMLElement }
     }
     preview?: {
         element: HTMLElement