diff --git a/courses/free-courses-en.md b/courses/free-courses-en.md
index e05601a1b..be69b3afd 100644
--- a/courses/free-courses-en.md
+++ b/courses/free-courses-en.md
@@ -1704,7 +1704,7 @@
 * [Solidity 201](https://www.youtube.com/playlist?list=PLYORQHvGMg-V9w6UZ_YOQYjG5NPqnRwdc) - Secureum
 * [Solidity Tutorial](https://www.youtube.com/playlist?list=PLbbtODcOYIoE0D6fschNU4rqtGFRpk3ea) - EatTheBlocks
 * [Solidity Tutorial - A Full Course on Ethereum, Blockchain Development, Smart Contracts, and the EVM](https://www.youtube.com/watch?v=ipwxYa-F1uY) - Gregory McCubbin @ freeCodeCamp.org & Dapp University
-
+* [Solidity Smart Contract Development](https://updraft.cyfrin.io/courses/solidity) - Patrick Collins, Austin Griffith
 
 ### Swift