dependency update

package.json

@@ -42,7 +42,7 @@
     "fitty": "^2.3.0",
     "glob": "^7.1.7",
     "gulp": "^4.0.2",
-    "gulp-autoprefixer": "^5.0.0",
+    "gulp-autoprefixer": "^8.0.0",
     "gulp-clean-css": "^4.2.0",
     "gulp-connect": "^5.7.0",
     "gulp-eslint": "^6.0.0",
@@ -50,7 +50,7 @@
     "gulp-tap": "^2.0.0",
     "gulp-zip": "^4.2.0",
     "highlight.js": "^10.0.3",
-    "marked": "^2.0.3",
+    "marked": "^4.0.12",
     "node-qunit-puppeteer": "^2.1.0",
     "qunit": "^2.17.2",
     "rollup": "^2.48.0",