diff --git a/.gitignore b/.gitignore
index e10ba39e8..969049cae 100644
--- a/.gitignore
+++ b/.gitignore
@@ -290,3 +290,4 @@ dist
 # #########################################################
 # User Custom
 # ########
+package-lock.json
diff --git a/courses/free-courses-en.md b/courses/free-courses-en.md
index 6065ba3bf..819b498c9 100644
--- a/courses/free-courses-en.md
+++ b/courses/free-courses-en.md
@@ -1704,6 +1704,7 @@
 * [MASTER Solidity for Blockchain](https://youtube.com/playlist?list=PLS5SEs8ZftgVnWHv2_mkvJjn5HBOkde3g) - Dapp University
 * [Solidity 101](https://www.youtube.com/playlist?list=PLYORQHvGMg-WS5r8UjaWnnAeCHTH3wRaF) - Secureum
 * [Solidity 201](https://www.youtube.com/playlist?list=PLYORQHvGMg-V9w6UZ_YOQYjG5NPqnRwdc) - Secureum
+* [Solidity Smart Contract Development](https://updraft.cyfrin.io/courses/solidity) - Patrick Collins, Austin Griffith
 * [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