diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..bcb88d4
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,19 @@
+version: 2
+updates:
+- package-ecosystem: npm
+  directory: "/"
+  schedule:
+    interval: daily
+  open-pull-requests-limit: 20
+  ignore:
+  - dependency-name: open
+    versions:
+    - 8.0.1
+    - 8.0.2
+    - 8.0.3
+    - 8.0.4
+    - 8.0.5
+    - 8.0.6
+  - dependency-name: sinon
+    versions:
+    - 10.0.0
diff --git a/lib/middlewares/route.js b/lib/middlewares/route.js
index b3f9d2d..c3c8d2c 100644
--- a/lib/middlewares/route.js
+++ b/lib/middlewares/route.js
@@ -6,7 +6,7 @@ const mime = require('mime');
 module.exports = function(app) {
   const { config, route } = this;
   const { args = {} } = this.env;
-  const { root } = config;
+  const { root, feed } = config;
 
   if (args.s || args.static) return;
 
@@ -63,7 +63,17 @@ module.exports = function(app) {
       return;
     }
 
-    res.setHeader('Content-Type', extname ? mime.getType(extname) : 'application/octet-stream');
+    if (feed && feed.path === url) {
+      if (feed.type === 'atom') {
+        res.setHeader('Content-Type', 'application/atom+xml');
+      } else if (feed.type === 'rss') {
+        res.setHeader('Content-Type', 'application/rss+xml');
+      } else {
+        res.setHeader('Content-Type', extname ? mime.getType(extname) : 'application/octet-stream');
+      }
+    } else {
+      res.setHeader('Content-Type', extname ? mime.getType(extname) : 'application/octet-stream');
+    }
 
     if (method === 'GET') {
       data.pipe(res).on('error', next);
diff --git a/package.json b/package.json
index 0df6724..9ae8c89 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "connect": "^3.7.0",
     "mime": "^2.4.3",
     "morgan": "^1.9.1",
-    "open": "^7.0.0",
+    "open": "^8.0.9",
     "serve-static": "^1.14.1"
   },
   "devDependencies": {
@@ -47,7 +47,7 @@
     "hexo-util": "^2.1.0",
     "mocha": "^8.0.1",
     "nyc": "^15.0.0",
-    "sinon": "^9.0.2",
+    "sinon": "^10.0.1",
     "supertest": "^6.1.3",
     "uuid": "^8.0.0"
   },