diff --git a/.drone.yml b/.drone.yml
index 58428fd..b4356d4 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -57,7 +57,12 @@ steps:
   - name: tags
     image: alpine
     commands:
-      - echo -n "latest, $DRONE_BRANCH, ${DRONE_COMMIT_SHA:0:8}" > .tags
+      - echo -n "latest, $DRONE_BRANCH, ${DRONE_COMMIT_SHA:0:7}" > .tags
+
+  - name: version
+    image: alpine
+    commands:
+      - sed -i "s/'s2oj-version' => 'dev'/'s2oj-version' => '${DRONE_COMMIT_SHA:0:7}'/g" web/app/.default-config.php
 
   - name: docker
     image: plugins/docker
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5951d3c..c8034ef 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -99,6 +99,10 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
+      - name: Replace version
+        run: |
+          sed -i "s/'s2oj-version' => 'dev'/'s2oj-version' => '$(echo "${{ github.sha }}" | cut -c1-7)'/g" web/app/.default-config.php
+
       - name: Log in to the Container registry
         uses: docker/login-action@v2.0.0
         with:
diff --git a/web/app/.default-config.php b/web/app/.default-config.php
index 74d4768..bc50183 100644
--- a/web/app/.default-config.php
+++ b/web/app/.default-config.php
@@ -6,7 +6,8 @@ return [
 		'administrator' => 'root',
 		'admin-email' => 'admin@sjzezoj.com',
 		'QQ-group' => '',
-		'ICP-license' => '冀ICP备2020028886号'
+		'ICP-license' => '冀ICP备2020028886号',
+		's2oj-version' => 'dev'
 	],
 	'database' => [
 		'database' => 'app_uoj233',
diff --git a/web/app/views/page-footer.php b/web/app/views/page-footer.php
index 5930540..261dbf6 100644
--- a/web/app/views/page-footer.php
+++ b/web/app/views/page-footer.php
@@ -15,12 +15,14 @@
 						<a class="dropdown-item" href="<?= HTML::url(UOJContext::requestURI(), array('params' => array('locale' => 'en'))) ?>">English</a>
 					</div>
 				</div>
-				
-				<ul class="list-inline"><li class="list-inline-item">Universal Online Judge</li></ul>
-				<?php if (UOJConfig::$data['profile']['ICP-license'] != ''): ?>
-				<p><a target="_blank" href="https://beian.miit.gov.cn" style="text-decoration:none;"><?= UOJConfig::$data['profile']['ICP-license'] ?></a></p>
-				<?php endif ?>
-				<p><?= UOJLocale::get('server time') ?>: <?= UOJTime::$time_now_str ?> | <a href="https://github.com/renbaoshuo/S2OJ" target="_blank"><?= UOJLocale::get('opensource project') ?></a></p>
+
+				<p><?= UOJLocale::get('server time') ?>: <?= UOJTime::$time_now_str ?></p>
+				<p>
+					<a href="https://github.com/renbaoshuo/S2OJ<?= UOJConfig::$data['profile']['s2oj-version'] == "dev" ? '' : '/tree/' . UOJConfig::$data['profile']['s2oj-version'] ?>">S2OJ (<?= UOJConfig::$data['profile']['s2oj-version'] ?>)</a>
+					<?php if (UOJConfig::$data['profile']['ICP-license'] != ''): ?>
+						| <a target="_blank" href="https://beian.miit.gov.cn" style="text-decoration:none;"><?= UOJConfig::$data['profile']['ICP-license'] ?></a>
+					<?php endif ?>
+				</p>
 			</div>
 			<?php endif ?>
 		</div>