diff --git a/_data/resources/articles.yml b/_data/resources/articles.yml
index eb09715..a7b22ec 100644
--- a/_data/resources/articles.yml
+++ b/_data/resources/articles.yml
@@ -99,11 +99,6 @@
   author: Justin Duke
   date: September 2016
 
-- title: Building a Web Crawler with Scrapy
-  url: https://blog.siliconstraits.vn/building-web-crawler-scrapy/
-  author: Hoài Thương
-  date: August 2016
-
 - title: How to crawl the web politely with Scrapy
   url: https://www.zyte.com/blog/how-to-crawl-the-web-politely-with-scrapy/
   author: Valdir Stumm Jr
diff --git a/_data/resources/courses.yml b/_data/resources/courses.yml
index 9c7d280..b26a16f 100644
--- a/_data/resources/courses.yml
+++ b/_data/resources/courses.yml
@@ -1,5 +1,5 @@
 - title:  "Scrapy: Powerful Web Scraping & Crawling with Python"
-  url:    https://www.udemy.com/scrapy-tutorial-web-scraping-with-python/?couponCode=SCRAPY
+  url:    https://www.udemy.com/scrapy-tutorial-web-scraping-with-python/
   author: GoTrained Academy
   platform:     Udemy
   length:       4 hours
@@ -7,8 +7,6 @@
     _Python Scrapy Tutorial - Learn how to scrape websites and build a
     powerful web crawler using Scrapy and Python._
 
-    Use coupon code `"SCRAPY"` to get 90% discount, or just follow the link above.
-
 - title:  "Python Scrapy: Scrape Web Data Using Python"
   url:    https://www.udemy.com/python-scrapy/
   author: Stone River eLearning