diff --git a/README.md b/README.md
index 38453c19..e015c20d 100644
--- a/README.md
+++ b/README.md
@@ -100,3 +100,13 @@ codehex <https://github.com/Code-Hex>
 ## License
 
 MIT
+
+## Contribution
+
+If you are interested, send me PR would be greatly appreciated!
+
+To test this code in your local environment, execute the following command.
+
+```
+$ yarn test-with-emulator
+```
\ No newline at end of file
diff --git a/package.json b/package.json
index c60741ed..7477b1f0 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
   },
   "dependencies": {
     "firebase-auth-cloudflare-workers": "^1.0.0",
-    "hono": "^2.0.2"
+    "hono": "^2.0.5"
   },
   "devDependencies": {
     "@cloudflare/workers-types": "^3.14.1",
diff --git a/yarn.lock b/yarn.lock
index 39cf29ef..73be20e6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3245,10 +3245,10 @@ has@^1.0.3:
   dependencies:
     function-bind "^1.1.1"
 
-hono@^2.0.2:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/hono/-/hono-2.0.2.tgz#5bf8b5be27523245364f8438c9a7151ac4b4d945"
-  integrity sha512-ge85omRQyDfOHe3EAJEG+leRsoFcwUkWeMD5UX5TMmPxd4mRbiu+yBLCUS/Dn9mUF550i0io1OUI9/6Mz2Xqkg==
+hono@^2.0.5:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/hono/-/hono-2.0.5.tgz#a40355f5fddb287f631c3953828b834c2775cb45"
+  integrity sha512-Vuwj2Qbk94y6NSTzaMo2eYHLyX0OpKmTONKOhUYUK6Lx6L/IRsDJ37aBY+7wi3oli7Sez792cAuZ5vdSt/Qt+g==
 
 html-escaper@^2.0.0:
   version "2.0.2"