diff --git a/en/device-dev/faqs/environment-setup.md b/en/device-dev/faqs/environment-setup.md
index 21286181f601e1ff7202139240c56ceffbad456c..2213897bdda18bb783464d0287102c2fc6c19533 100644
--- a/en/device-dev/faqs/environment-setup.md
+++ b/en/device-dev/faqs/environment-setup.md
@@ -158,7 +158,7 @@
 
     Solution 1: Run the  **apt-get install zlib**  command to install  **zlib**  online.
 
-    Solution 2: If the software source does not contain  **zlib**, download the source code from  [http://www.zlib.net/](http://www.zlib.net/).
+    Solution 2: If the software source does not contain  **zlib**, download the source code from  https://www.zlib.net/.
 
     ![](figures/download-zlib.png)