diff --git a/ChangeLog.md b/ChangeLog.md
index 639bbc25..7bc5d396 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,11 @@
+### v2.0.3 / 2023-01-21
+
+  - 外部リンクが同一のタブで開くバグを修正
+  - @kobalab/majiang-core 1.0.1 → 1.0.2
+  - @kobalab/majiang-ai 1.0.2 → 1.0.3
+  - @kobalab/majiang-ui 1.0.2 → 1.0.3
+    - #108 検討モードが2シャンテンからリーチ宣言牌を鳴くべきと評価するバグを修正
+
 ### v2.0.2 / 2022-12-26
 
   - 書籍情報を追加
diff --git a/package-lock.json b/package-lock.json
index 2d8e1776..a8718b35 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,17 +1,17 @@
 {
   "name": "majiang",
-  "version": "2.0.2",
+  "version": "2.0.3",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "majiang",
-      "version": "2.0.2",
+      "version": "2.0.3",
       "license": "MIT",
       "dependencies": {
-        "@kobalab/majiang-ai": "^1.0.2",
-        "@kobalab/majiang-core": "^1.0.1",
-        "@kobalab/majiang-ui": "^1.0.2",
+        "@kobalab/majiang-ai": "^1.0.3",
+        "@kobalab/majiang-core": "^1.0.2",
+        "@kobalab/majiang-ui": "^1.0.3",
         "jquery": "^3.6.0"
       },
       "devDependencies": {
@@ -134,25 +134,25 @@
       }
     },
     "node_modules/@kobalab/majiang-ai": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/@kobalab/majiang-ai/-/majiang-ai-1.0.2.tgz",
-      "integrity": "sha512-lFltQoSRZHOaMLomqajWZcktGQFhHyMYrVc4dn4N/xPd5gN54T+4hup0Cli4n6XQqYh3BIgqasa/TDTVouemBw==",
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/@kobalab/majiang-ai/-/majiang-ai-1.0.3.tgz",
+      "integrity": "sha512-D2pAnMNrAtvAsOpNnrbd8YOoWXeSt5Y97jfm7/YgPj3tfnQ5ksBirhkWW58Cra2rfnpwVFds/t0mZ0vY77r61g==",
       "dependencies": {
-        "@kobalab/majiang-core": "^1.0.1"
+        "@kobalab/majiang-core": "^1.0.2"
       }
     },
     "node_modules/@kobalab/majiang-core": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/@kobalab/majiang-core/-/majiang-core-1.0.1.tgz",
-      "integrity": "sha512-XhXrTAFTSnC85uRK7Av/cmaKIA/ufD5xYvUbr9jkYxPiJYyRnPsRHxt7EfAHVjpAmf0WP0LMD08dk99BDFHe/A=="
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/@kobalab/majiang-core/-/majiang-core-1.0.2.tgz",
+      "integrity": "sha512-WjTj+7gVnLnK6cZJLUYh7UCNduXyrdJQbGDdjU4ACA/U7falLXy7u7y6mm3oGFSx9kaF4pXF/299yRsIzNvtHg=="
     },
     "node_modules/@kobalab/majiang-ui": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/@kobalab/majiang-ui/-/majiang-ui-1.0.2.tgz",
-      "integrity": "sha512-NL4/JHeSdEmyd41ah88q/k9CHiIx8LIDZatISjspjuzoh95HVIT3vO1cqE/lclkb3ppZCq8oIHfymn6WYUUgQQ==",
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/@kobalab/majiang-ui/-/majiang-ui-1.0.3.tgz",
+      "integrity": "sha512-IJp5NLW+kkUBdkUq0PrFBzooXrJQOJM0wFcMnr8x7VJRRM0xppjGwVr4IWY00QcWAB6RO+Yx8A5O5kYgak1GOQ==",
       "dependencies": {
-        "@kobalab/majiang-ai": "^1.0.2",
-        "@kobalab/majiang-core": "^1.0.1",
+        "@kobalab/majiang-ai": "^1.0.3",
+        "@kobalab/majiang-core": "^1.0.2",
         "jquery": "^3.6.0",
         "jquery-ui": "^1.13.2"
       }
@@ -2273,25 +2273,25 @@
       }
     },
     "@kobalab/majiang-ai": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/@kobalab/majiang-ai/-/majiang-ai-1.0.2.tgz",
-      "integrity": "sha512-lFltQoSRZHOaMLomqajWZcktGQFhHyMYrVc4dn4N/xPd5gN54T+4hup0Cli4n6XQqYh3BIgqasa/TDTVouemBw==",
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/@kobalab/majiang-ai/-/majiang-ai-1.0.3.tgz",
+      "integrity": "sha512-D2pAnMNrAtvAsOpNnrbd8YOoWXeSt5Y97jfm7/YgPj3tfnQ5ksBirhkWW58Cra2rfnpwVFds/t0mZ0vY77r61g==",
       "requires": {
-        "@kobalab/majiang-core": "^1.0.1"
+        "@kobalab/majiang-core": "^1.0.2"
       }
     },
     "@kobalab/majiang-core": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/@kobalab/majiang-core/-/majiang-core-1.0.1.tgz",
-      "integrity": "sha512-XhXrTAFTSnC85uRK7Av/cmaKIA/ufD5xYvUbr9jkYxPiJYyRnPsRHxt7EfAHVjpAmf0WP0LMD08dk99BDFHe/A=="
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/@kobalab/majiang-core/-/majiang-core-1.0.2.tgz",
+      "integrity": "sha512-WjTj+7gVnLnK6cZJLUYh7UCNduXyrdJQbGDdjU4ACA/U7falLXy7u7y6mm3oGFSx9kaF4pXF/299yRsIzNvtHg=="
     },
     "@kobalab/majiang-ui": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/@kobalab/majiang-ui/-/majiang-ui-1.0.2.tgz",
-      "integrity": "sha512-NL4/JHeSdEmyd41ah88q/k9CHiIx8LIDZatISjspjuzoh95HVIT3vO1cqE/lclkb3ppZCq8oIHfymn6WYUUgQQ==",
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/@kobalab/majiang-ui/-/majiang-ui-1.0.3.tgz",
+      "integrity": "sha512-IJp5NLW+kkUBdkUq0PrFBzooXrJQOJM0wFcMnr8x7VJRRM0xppjGwVr4IWY00QcWAB6RO+Yx8A5O5kYgak1GOQ==",
       "requires": {
-        "@kobalab/majiang-ai": "^1.0.2",
-        "@kobalab/majiang-core": "^1.0.1",
+        "@kobalab/majiang-ai": "^1.0.3",
+        "@kobalab/majiang-core": "^1.0.2",
         "jquery": "^3.6.0",
         "jquery-ui": "^1.13.2"
       }
diff --git a/package.json b/package.json
index b51d72a3..ed1a4ad5 100644
--- a/package.json
+++ b/package.json
@@ -1,11 +1,11 @@
 {
   "name": "majiang",
-  "version": "2.0.2",
+  "version": "2.0.3",
   "description": "HTML5 + JavaScript で動作する麻雀アプリ「電脳麻将」",
   "private": true,
   "scripts": {
     "build:html": "pug -o dist -P src/html/page/",
-    "build:css": "stylus src/css/index.styl -o dist/css/majiang-2.0.2.css",
+    "build:css": "stylus src/css/index.styl -o dist/css/majiang-2.0.3.css",
     "build:js": "webpack --mode development --devtool inline-source-map",
     "build": "npm run build:html && npm run build:css && npm run build:js",
     "release": "npm run build:html && npm run build:css && webpack --mode production",
@@ -31,9 +31,9 @@
     "webpack-cli": "^4.9.1"
   },
   "dependencies": {
-    "@kobalab/majiang-ai": "^1.0.2",
-    "@kobalab/majiang-core": "^1.0.1",
-    "@kobalab/majiang-ui": "^1.0.2",
+    "@kobalab/majiang-ai": "^1.0.3",
+    "@kobalab/majiang-core": "^1.0.2",
+    "@kobalab/majiang-ui": "^1.0.3",
     "jquery": "^3.6.0"
   }
 }
diff --git a/src/html/inc/navi.pug b/src/html/inc/navi.pug
index 03db0795..47ba1508 100644
--- a/src/html/inc/navi.pug
+++ b/src/html/inc/navi.pug
@@ -8,5 +8,5 @@ ul#navi
   li #[a(href="hule.html") 点計算]
   li #[a(href="dapai.html") 何切る]
   li #[a(href="paiga.html") 牌画]
-  li #[a(href="https://github.com/kobalab/Majiang" target="_brank") GitHub]
-  li #[a(href="https://www.amazon.co.jp/dp/4798067881" target="_brank") 書籍]
+  li #[a(href="https://github.com/kobalab/Majiang" target="_blank") GitHub]
+  li #[a(href="https://www.amazon.co.jp/dp/4798067881" target="_blank") 書籍]
diff --git a/src/html/inc/version.pug b/src/html/inc/version.pug
index 6e9c5339..f596b4b4 100644
--- a/src/html/inc/version.pug
+++ b/src/html/inc/version.pug
@@ -1 +1 @@
-- var version = '2.0.2'
+- var version = '2.0.3'
diff --git a/src/js/autoplay.js b/src/js/autoplay.js
index c6738edb..80cbcc8c 100644
--- a/src/js/autoplay.js
+++ b/src/js/autoplay.js
@@ -1,5 +1,5 @@
 /*!
- *  電脳麻将: 自動対戦 v2.0.2
+ *  電脳麻将: 自動対戦 v2.0.3
  *
  *  Copyright(C) 2017 Satoshi Kobayashi
  *  Released under the MIT license
diff --git a/src/js/dapai.js b/src/js/dapai.js
index d5d9c2e7..ed6c001b 100644
--- a/src/js/dapai.js
+++ b/src/js/dapai.js
@@ -1,5 +1,5 @@
 /*!
- *  電脳麻将: 何切る解答機 v2.0.2
+ *  電脳麻将: 何切る解答機 v2.0.3
  *
  *  Copyright(C) 2017 Satoshi Kobayashi
  *  Released under the MIT license
diff --git a/src/js/hule.js b/src/js/hule.js
index 6572c3d9..23b4e227 100644
--- a/src/js/hule.js
+++ b/src/js/hule.js
@@ -1,5 +1,5 @@
 /*!
- *  電脳麻将: 和了点計算 v2.0.2
+ *  電脳麻将: 和了点計算 v2.0.3
  *
  *  Copyright(C) 2017 Satoshi Kobayashi
  *  Released under the MIT license
diff --git a/src/js/index.js b/src/js/index.js
index 70f02cf8..f058684d 100644
--- a/src/js/index.js
+++ b/src/js/index.js
@@ -1,5 +1,5 @@
 /*!
- *  電脳麻将 v2.0.2
+ *  電脳麻将 v2.0.3
  *
  *  Copyright(C) 2017 Satoshi Kobayashi
  *  Released under the MIT license
diff --git a/src/js/majiang.js b/src/js/majiang.js
index 20bbc3c5..13d8e711 100644
--- a/src/js/majiang.js
+++ b/src/js/majiang.js
@@ -1,5 +1,5 @@
 /*!
- *  電脳麻将 v2.0.2
+ *  電脳麻将 v2.0.3
  *
  *  Copyright(C) 2017 Satoshi Kobayashi
  *  Released under the MIT license
@@ -9,6 +9,6 @@
 global.Majiang = require('@kobalab/majiang-core');
 global.Majiang.AI = require('@kobalab/majiang-ai');
 global.Majiang.UI = require('@kobalab/majiang-ui');
-global.Majiang.VERSION = '2.0.2';
+global.Majiang.VERSION = '2.0.3';
 global.jQuery  = require('jquery');
 global.$ = jQuery;
diff --git a/src/js/paiga.js b/src/js/paiga.js
index 863f79f8..fa8190db 100644
--- a/src/js/paiga.js
+++ b/src/js/paiga.js
@@ -1,5 +1,5 @@
 /*!
- *  電脳麻将: 牌画入力 v2.0.2
+ *  電脳麻将: 牌画入力 v2.0.3
  *
  *  Copyright(C) 2017 Satoshi Kobayashi
  *  Released under the MIT license
diff --git a/src/js/paili.js b/src/js/paili.js
index 1848ece8..d819d9e3 100644
--- a/src/js/paili.js
+++ b/src/js/paili.js
@@ -1,5 +1,5 @@
 /*!
- *  電脳麻将: 牌理 v2.0.2
+ *  電脳麻将: 牌理 v2.0.3
  *
  *  Copyright(C) 2017 Satoshi Kobayashi
  *  Released under the MIT license
diff --git a/src/js/paipu.js b/src/js/paipu.js
index 13ea20da..26bce2df 100644
--- a/src/js/paipu.js
+++ b/src/js/paipu.js
@@ -1,5 +1,5 @@
 /*!
- *  電脳麻将: 牌譜ビューア v2.0.2
+ *  電脳麻将: 牌譜ビューア v2.0.3
  *
  *  Copyright(C) 2017 Satoshi Kobayashi
  *  Released under the MIT license
diff --git a/src/js/rule.js b/src/js/rule.js
index e9bc68c7..1bc7aff9 100644
--- a/src/js/rule.js
+++ b/src/js/rule.js
@@ -1,5 +1,5 @@
 /*!
- *  電脳麻将: ルール設定 v2.0.2
+ *  電脳麻将: ルール設定 v2.0.3
  *
  *  Copyright(C) 2017 Satoshi Kobayashi
  *  Released under the MIT license