diff --git a/autoload/skkeleton.vim b/autoload/skkeleton.vim
index 2d469cca..767f352f 100644
--- a/autoload/skkeleton.vim
+++ b/autoload/skkeleton.vim
@@ -328,3 +328,9 @@ endfunction
 function! skkeleton#initialize() abort
   call skkeleton#notify_async('initialize', [])
 endfunction
+
+function! skkeleton#update_database(path, ...) abort
+  let encoding = a:0 > 0 ? a:1 : ''
+  let force = a:0 > 1 ? a:2 : v:false
+  call skkeleton#notify_async('updateDatabase', [a:path, encoding, force])
+endfunction
diff --git a/denops/skkeleton/jisyo/deno_kv.ts b/denops/skkeleton/jisyo/deno_kv.ts
index 45402bbc..ca939561 100644
--- a/denops/skkeleton/jisyo/deno_kv.ts
+++ b/denops/skkeleton/jisyo/deno_kv.ts
@@ -85,10 +85,13 @@ export class DenoKvDictionary implements Dictionary {
     return Promise.resolve(candidates);
   }
 
-  async load() {
+  async load(force = false) {
     const stat = await Deno.stat(this.#path);
     const mtime = stat.mtime?.getTime();
-    if (mtime && (await this.#db.get([this.#path, "mtime"])).value === mtime) {
+    if (
+      !force && mtime &&
+      (await this.#db.get([this.#path, "mtime"])).value === mtime
+    ) {
       return this;
     }
 
diff --git a/denops/skkeleton/main.ts b/denops/skkeleton/main.ts
index 67799718..af69e292 100644
--- a/denops/skkeleton/main.ts
+++ b/denops/skkeleton/main.ts
@@ -5,6 +5,7 @@ import { functions, modeFunctions } from "./function.ts";
 import { disable as disableFunc } from "./function/disable.ts";
 import { load as jisyoLoad } from "./jisyo.ts";
 import { SkkServer } from "./jisyo/skk_server.ts";
+import { DenoKvDictionary } from "./jisyo/deno_kv.ts";
 import { GoogleJapaneseInput } from "./jisyo/google_japanese_input.ts";
 import { currentKanaTable, registerKanaTable } from "./kana.ts";
 import { handleKey, registerKeyMap } from "./keymap.ts";
@@ -393,6 +394,14 @@ export async function main(denops: Denops) {
       // NOTE: Initialize dictionary
       await currentLibrary.get();
     },
+    async updateDatabase(path: unknown, encoding: unknown, force: unknown) {
+      assert(path, is.String);
+      assert(encoding, is.String);
+      assert(force, is.Boolean);
+      await DenoKvDictionary.create(path, encoding)
+        .then((dict) => dict.load(force));
+      await denops.cmd(`echomsg 'updated database: "${path}"'`);
+    },
   };
   if (config.debug) {
     await denops.cmd(`echomsg "loaded skkeleton"`);