diff --git a/CHANGELOG.md b/CHANGELOG.md
index d5c69d5..476cf9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 6.0.3
+
+* Improved typings for Vue 2 version.
+
 ## 6.0.2
 
 * Make `notMerge` option still respect `update-options`.
diff --git a/package.json b/package.json
index 0b91b19..04e73dc 100644
--- a/package.json
+++ b/package.json
@@ -1,11 +1,11 @@
 {
   "name": "vue-echarts",
-  "version": "6.0.2",
+  "version": "6.0.3",
   "description": "Vue.js component for Apache ECharts.",
   "author": "GU Yiling <justice360@gmail.com>",
   "scripts": {
     "serve": "vue-cli-service serve",
-    "build": "npm run docs && rimraf dist && rollup -c rollup.config.js && cp src/index.vue2.d.ts dist",
+    "build": "npm run docs && rimraf dist && rollup -c rollup.config.js",
     "lint": "vue-cli-service lint",
     "build:demo": "vue-cli-service build",
     "docs": "node -r esm ./scripts/docs.js",
diff --git a/rollup.config.js b/rollup.config.js
index e9432af..4887f0d 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -97,6 +97,14 @@ const options = [
       file: "dist/index.d.ts",
       format: "es"
     }
+  },
+  {
+    input: "src/index.vue2.d.ts",
+    plugins: [dts()],
+    output: {
+      file: "dist/index.vue2.d.ts",
+      format: "es"
+    }
   }
 ];
 
diff --git a/src/index.vue2.d.ts b/src/index.vue2.d.ts
index c15909f..5e52e26 100644
--- a/src/index.vue2.d.ts
+++ b/src/index.vue2.d.ts
@@ -1,10 +1,55 @@
-/* eslint-disable @typescript-eslint/no-explicit-any */
+/* eslint-disable @typescript-eslint/ban-types */
+import { DefineComponent } from "@vue/runtime-dom";
+import { Ref } from "@vue/composition-api";
+import { Option, InitOptions, UpdateOptions, EChartsType } from "./types";
+
 declare const LOADING_OPTIONS_KEY = "ecLoadingOptions";
 declare const THEME_KEY = "ecTheme";
 declare const INIT_OPTIONS_KEY = "ecInitOptions";
 declare const UPDATE_OPTIONS_KEY = "ecUpdateOptions";
 
-declare const _default: any;
+declare type ChartProps = {
+  loading?: boolean;
+  loadingOptions?: Record<string, unknown>;
+  autoresize?: boolean;
+  option?: Option;
+  theme?: string | Record<string, unknown>;
+  initOptions?: InitOptions;
+  updateOptions?: UpdateOptions;
+  group?: string;
+  manualUpdate?: boolean;
+};
 
-export default _default;
+type MethodNames =
+  | "getWidth"
+  | "getHeight"
+  | "getDom"
+  | "getOption"
+  | "resize"
+  | "dispatchAction"
+  | "convertToPixel"
+  | "convertFromPixel"
+  | "containPixel"
+  | "getDataURL"
+  | "getConnectedDataURL"
+  | "appendData"
+  | "clear"
+  | "isDisposed"
+  | "dispose"
+  | "setOption";
+
+declare type ChartMethods = Pick<EChartsType, MethodNames>;
+
+declare const Chart: DefineComponent<
+  ChartProps,
+  {
+    root: Ref<HTMLElement | undefined>;
+    chart: Ref<EChartsType | undefined>;
+  },
+  {},
+  {},
+  ChartMethods
+>;
+
+export default Chart;
 export { INIT_OPTIONS_KEY, LOADING_OPTIONS_KEY, THEME_KEY, UPDATE_OPTIONS_KEY };
diff --git a/src/types.ts b/src/types.ts
index 48b549a..fa1f027 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/no-explicit-any */
 import { init, SetOptionOpts } from "echarts/core";
 import { Ref } from "vue";