diff --git a/dist/index.d.ts b/dist/index.d.ts
index 17d127f..c38b3eb 100644
--- a/dist/index.d.ts
+++ b/dist/index.d.ts
@@ -40,6 +40,7 @@ export default class Config {
   open(file: string): void;
   openDir(dir: string): void;
   openJson(file: string): void;
+  saveConfigJson(data: object): void;
   filter(name: string): Config;
   set(key: string, value: any): void;
   has(key: string): boolean;
diff --git a/dist/index.js b/dist/index.js
index 7c42a43..c9ec3cb 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -134,6 +134,11 @@ class Config {
         }
         this.prefix = this.getPrefix();
     }
+    saveConfigJson(data) {
+        (0, bsert_1.default)(typeof data === "object");
+        (0, bsert_1.default)(!Array.isArray(data));
+        fs_1.default.writeFileSync(this.str("configdir"), JSON.stringify(data));
+    }
     filter(name) {
         (0, bsert_1.default)(typeof name === "string");
         const child = new Config(this.module);