diff --git a/Gulpfile.coffee b/Gulpfile.coffee
index 18ab7cc..f875b26 100644
--- a/Gulpfile.coffee
+++ b/Gulpfile.coffee
@@ -4,7 +4,7 @@ tsify = require 'tsify'
 mochify = require 'mochify'
 coffeeify = require 'coffeeify'
 browserify = require 'browserify'
-jade = require 'gulp-jade'
+pug = require 'gulp-pug'
 less = require 'gulp-less'
 rename = require 'gulp-rename'
 uglify = require 'gulp-uglify'
@@ -22,8 +22,8 @@ TYPEFILES = [
 buildHtml = (locals) ->
 	locals.pkg = pkg
 
-	gulp.src '*.jade'
-	.pipe jade locals: locals
+	gulp.src '*.pug'
+	.pipe pug locals: locals
 	.pipe rename (file) -> file.extname = '.html'
 	.pipe gulp.dest '.'
 
@@ -82,7 +82,7 @@ gulp.task 'connect', ->
 gulp.task 'watch', ->
 	gulp.watch ['*.ts', 'src/*.ts'], ['build:js']
 	gulp.watch '*.less', ['build:css']
-	gulp.watch '*.jade', ['build:html']
+	gulp.watch '*.pug', ['build:html']
 	return
 
 gulp.task 'mochify:phantom', (done) ->
diff --git a/README.md b/README.md
index 4326fa5..96e6f25 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ This project uses various new technologies for my JavaScript study. Here is the
 
 ### Static assets
 
-* [Jade](http://jade-lang.com/)
+* ~~[Jade](http://jade-lang.com/)~~ → Renamed to Pug
 * [LESS](http://less-ja.studiomohawk.com/)
     - [Pure.css](http://purecss.io/)
 
diff --git a/index.jade b/index.pug
similarity index 100%
rename from index.jade
rename to index.pug
diff --git a/package.json b/package.json
index b03a8bf..1a5cd68 100644
--- a/package.json
+++ b/package.json
@@ -31,8 +31,8 @@
     "gulp": "gulpjs/gulp#4.0",
     "gulp-clean-css": "~2.0.3",
     "gulp-connect": "~4.0.0",
-    "gulp-jade": "~1.1.0",
     "gulp-less": "~3.1.0",
+    "gulp-pug": "~3.0.2",
     "gulp-rename": "~1.2.2",
     "gulp-uglify": "~1.5.3",
     "html-entities": "~1.2.0",