diff --git a/Smart-Contract-Security/README.md b/Smart-Contract-Security/README.md
index ed71251..bd7179a 100644
--- a/Smart-Contract-Security/README.md
+++ b/Smart-Contract-Security/README.md
@@ -8,7 +8,6 @@ In this repository:
 
 
 * [Notes on reentrancy](https://github.com/bt3gl-labs/Blockchain-Development-and-Security/blob/main/Smart-Contract-Security/reentrancy-notes.md)
-* [Notes on frontrunning](https://github.com/bt3gl-labs/Blockchain-Development-and-Security/blob/main/Smart-Contract-Security/frontrunning-notes.md)
 * [Notes on arithmetic bugs](https://github.com/bt3gl-labs/Blockchain-Development-and-Security/blob/main/Smart-Contract-Security/arithmetic-bugs-notes.md)
 * [List of interesting hacks](https://github.com/bt3gl-labs/Blockchain-Development-and-Security/blob/main/Smart-Contract-Security/real-case-hacks.md)
 * [A guide for pentesting](https://github.com/bt3gl-labs/Blockchain-Development-and-Security/blob/main/Smart-Contract-Security/pentesting.md)