diff --git a/denops/skkeleton/config_test.ts b/denops/skkeleton/config_test.ts
index 156a15e0..6bdc63df 100644
--- a/denops/skkeleton/config_test.ts
+++ b/denops/skkeleton/config_test.ts
@@ -1,13 +1,14 @@
 import { config } from "./config.ts";
 import { Context } from "./context.ts";
 import { Denops } from "./deps.ts";
-import { assertEquals } from "./deps/std/assert.ts";
 import { disable } from "./function/disable.ts";
 import { katakana } from "./function/mode.ts";
 import { dispatch } from "./function/testutil.ts";
 import { currentContext, currentLibrary, variables } from "./store.ts";
 import { test } from "./testutil.ts";
 
+import { assertEquals } from "jsr:@std/assert@~1.0.3/equals";
+
 const defaultConfig = { ...config };
 
 const lib = await currentLibrary.get();
diff --git a/denops/skkeleton/deps/std/assert.ts b/denops/skkeleton/deps/std/assert.ts
deleted file mode 100644
index 49ad0912..00000000
--- a/denops/skkeleton/deps/std/assert.ts
+++ /dev/null
@@ -1 +0,0 @@
-export { assertEquals } from "jsr:@std/assert@~1.0.3/equals";
diff --git a/denops/skkeleton/dictionary_test.ts b/denops/skkeleton/dictionary_test.ts
index 0bea3721..82735e0a 100644
--- a/denops/skkeleton/dictionary_test.ts
+++ b/denops/skkeleton/dictionary_test.ts
@@ -1,9 +1,9 @@
-import { assertEquals } from "./deps/std/assert.ts";
 import { Dictionary, Library, wrapDictionary } from "./dictionary.ts";
 import { Dictionary as SkkDictionary } from "./sources/skk_dictionary.ts";
 import { Dictionary as DenoKvDictionary } from "./sources/deno_kv.ts";
 import { Dictionary as UserDictionary } from "./sources/user_dictionary.ts";
 
+import { assertEquals } from "jsr:@std/assert@~1.0.3/equals";
 import { dirname } from "jsr:@std/path@~1.0.3/dirname";
 import { fromFileUrl } from "jsr:@std/path@~1.0.3/from-file-url";
 import { join } from "jsr:@std/path@~1.0.3/join";
diff --git a/denops/skkeleton/function/common_test.ts b/denops/skkeleton/function/common_test.ts
index 3dacd6ec..d582f06b 100644
--- a/denops/skkeleton/function/common_test.ts
+++ b/denops/skkeleton/function/common_test.ts
@@ -1,11 +1,12 @@
 import { config } from "../config.ts";
 import { Context } from "../context.ts";
-import { assertEquals } from "../deps/std/assert.ts";
 import { currentLibrary } from "../store.ts";
 import { cancel, kakutei, kakuteiKey } from "./common.ts";
 import { katakana } from "./mode.ts";
 import { dispatch } from "./testutil.ts";
 
+import { assertEquals } from "jsr:@std/assert@~1.0.3/equals";
+
 const lib = await currentLibrary.get();
 
 await lib.registerHenkanResult("okurinasi", "あ", "い");
diff --git a/denops/skkeleton/function/dictionary_test.ts b/denops/skkeleton/function/dictionary_test.ts
index 785a2067..f4f7efb5 100644
--- a/denops/skkeleton/function/dictionary_test.ts
+++ b/denops/skkeleton/function/dictionary_test.ts
@@ -1,11 +1,12 @@
 import { Denops } from "../deps.ts";
-import { assertEquals } from "../deps/std/assert.ts";
 import { currentKanaTable, getKanaTable } from "../kana.ts";
 import { HenkanState } from "../state.ts";
 import { currentContext } from "../store.ts";
 import { test } from "../testutil.ts";
 import { registerWord } from "./dictionary.ts";
 
+import { assertEquals } from "jsr:@std/assert@~1.0.3/equals";
+
 test({
   mode: "all",
   name: "Don't put string when register dictionary was cancelled",
diff --git a/denops/skkeleton/function/disable_test.ts b/denops/skkeleton/function/disable_test.ts
index 0239fa1b..1168f24f 100644
--- a/denops/skkeleton/function/disable_test.ts
+++ b/denops/skkeleton/function/disable_test.ts
@@ -1,9 +1,10 @@
 import { Denops } from "../deps.ts";
-import { assertEquals } from "../deps/std/assert.ts";
 import { currentContext } from "../store.ts";
 import { test } from "../testutil.ts";
 import { dispatch } from "./testutil.ts";
 
+import { assertEquals } from "jsr:@std/assert@~1.0.3/equals";
+
 // deno-lint-ignore no-explicit-any
 async function getResult(x: Promise<any>): Promise<string> {
   return (await x)?.result;
diff --git a/denops/skkeleton/function/henkan_test.ts b/denops/skkeleton/function/henkan_test.ts
index 4fbaaeac..2e27e05c 100644
--- a/denops/skkeleton/function/henkan_test.ts
+++ b/denops/skkeleton/function/henkan_test.ts
@@ -1,8 +1,9 @@
 import { Context } from "../context.ts";
-import { assertEquals } from "../deps/std/assert.ts";
 import { currentLibrary } from "../store.ts";
 import { dispatch } from "./testutil.ts";
 
+import { assertEquals } from "jsr:@std/assert@~1.0.3/equals";
+
 const l = await currentLibrary.get();
 await l.registerHenkanResult("okurinasi", "へんかん", "返還");
 await l.registerHenkanResult("okurinasi", "へんかん", "変換");
diff --git a/denops/skkeleton/function/input_test.ts b/denops/skkeleton/function/input_test.ts
index 3e6c377e..5e79b8f4 100644
--- a/denops/skkeleton/function/input_test.ts
+++ b/denops/skkeleton/function/input_test.ts
@@ -1,13 +1,14 @@
 import { config } from "../config.ts";
 import { Context } from "../context.ts";
 import { Denops, op } from "../deps.ts";
-import { assertEquals } from "../deps/std/assert.ts";
 import { test } from "../testutil.ts";
 import { kakutei } from "./common.ts";
 import { deleteChar, henkanPoint } from "./input.ts";
 import { hankatakana, katakana } from "./mode.ts";
 import { dispatch } from "./testutil.ts";
 
+import { assertEquals } from "jsr:@std/assert@~1.0.3/equals";
+
 Deno.test({
   name: "kana input",
   async fn() {
diff --git a/denops/skkeleton/function/mode_test.ts b/denops/skkeleton/function/mode_test.ts
index 23a8920d..385a42ea 100644
--- a/denops/skkeleton/function/mode_test.ts
+++ b/denops/skkeleton/function/mode_test.ts
@@ -1,5 +1,4 @@
 import { autocmd, Denops, vars } from "../deps.ts";
-import { assertEquals } from "../deps/std/assert.ts";
 import { currentKanaTable } from "../kana.ts";
 import { currentLibrary } from "../store.ts";
 import { currentContext } from "../store.ts";
@@ -9,6 +8,8 @@ import { deleteChar, kanaInput } from "./input.ts";
 import { abbrev, hankatakana, katakana, zenkaku } from "./mode.ts";
 import { dispatch } from "./testutil.ts";
 
+import { assertEquals } from "jsr:@std/assert@~1.0.3/equals";
+
 test({
   mode: "all",
   name: "Can get skkeleton mode",
diff --git a/denops/skkeleton/kana_test.ts b/denops/skkeleton/kana_test.ts
index de0e2fc9..c13fd030 100644
--- a/denops/skkeleton/kana_test.ts
+++ b/denops/skkeleton/kana_test.ts
@@ -1,11 +1,13 @@
+import { Denops } from "./deps.ts";
 import { config } from "./config.ts";
 import { Context } from "./context.ts";
-import { assertEquals } from "./deps/std/assert.ts";
 import { dispatch } from "./function/testutil.ts";
 import { registerKanaTable } from "./kana.ts";
 import { currentContext } from "./store.ts";
 import { test } from "./testutil.ts";
 
+import { assertEquals } from "jsr:@std/assert@~1.0.3/equals";
+
 Deno.test({
   name: "customize kanatable",
   async fn() {
@@ -34,7 +36,7 @@ Deno.test({
 test({
   mode: "all",
   name: "create kanatable",
-  async fn(denops) {
+  async fn(denops: Denops) {
     registerKanaTable("test", {
       a: ["hoge", ""],
     }, true);
diff --git a/denops/skkeleton/keymap_test.ts b/denops/skkeleton/keymap_test.ts
index 928f1a84..c3b2c922 100644
--- a/denops/skkeleton/keymap_test.ts
+++ b/denops/skkeleton/keymap_test.ts
@@ -1,12 +1,14 @@
+import { Denops } from "./deps.ts";
 import { test } from "./testutil.ts";
-import { assertEquals } from "./deps/std/assert.ts";
 import { currentLibrary } from "./store.ts";
 import { currentContext } from "./store.ts";
 
+import { assertEquals } from "jsr:@std/assert@~1.0.3/equals";
+
 test({
   mode: "nvim", // can input mode test only in nvim
   name: "registerKeyMap",
-  async fn(denops) {
+  async fn(denops: Denops) {
     const lib = await currentLibrary.get();
     lib.registerHenkanResult("okurinasi", "あ", "亜");
     await denops.cmd('call skkeleton#register_keymap("henkan", "x", "")');
diff --git a/denops/skkeleton/preedit_test.ts b/denops/skkeleton/preedit_test.ts
index d72f7054..b23b9662 100644
--- a/denops/skkeleton/preedit_test.ts
+++ b/denops/skkeleton/preedit_test.ts
@@ -1,6 +1,7 @@
-import { assertEquals } from "./deps/std/assert.ts";
 import { PreEdit } from "./preedit.ts";
 
+import { assertEquals } from "jsr:@std/assert@~1.0.3/equals";
+
 Deno.test({
   name: "preedit test",
   fn() {
diff --git a/denops/skkeleton/util_test.ts b/denops/skkeleton/util_test.ts
index da764ea3..2a9d9ea5 100644
--- a/denops/skkeleton/util_test.ts
+++ b/denops/skkeleton/util_test.ts
@@ -1,6 +1,7 @@
-import { assertEquals } from "./deps/std/assert.ts";
 import { LazyCell } from "./util.ts";
 
+import { assertEquals } from "jsr:@std/assert@~1.0.3/equals";
+
 Deno.test({
   name: "LazyCell",
   async fn(t) {