diff --git a/package.json b/package.json
index bcc6b7a..59fdd05 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "anichart",
-  "version": "2.3.1-alpha.2",
+  "version": "2.3.1",
   "description": "Data visualization animation library",
   "author": "jannchie <jannchie@gmail.com>",
   "license": "MIT",
diff --git a/typings/core/chart/BarChart.d.ts b/typings/core/chart/BarChart.d.ts
index c45585d..b7a8837 100644
--- a/typings/core/chart/BarChart.d.ts
+++ b/typings/core/chart/BarChart.d.ts
@@ -34,14 +34,14 @@ export interface BarOptions {
     image?: string;
 }
 export declare class BarChart extends BaseChart {
-    dateLabelOptions: TextOptions | undefined;
+    dateLabelOptions: TextOptions;
     barFontSizeScale: number;
     showRankLabel: boolean;
     private readonly rankPadding;
     rankLabelPlaceholder: number;
     reduceID: boolean;
     dy: number;
-    barInfoOptions: any;
+    barInfoOptions: TextOptions;
     domain: (data: any) => [number, number];
     get maxRankLabelWidth(): number;
     constructor(options?: BarChartOptions);