Update README.md

Author: ic0ns

README.md

@@ -4,7 +4,7 @@ TLS-Scanner is a tool created by the Chair for Network and Data Security from th
 **Please note:**  *TLS-Scanner is a research tool intended for TLS developers, pentesters, administrators and researchers. There is no GUI. It is in the first version and may contain some bugs.*
 
 # Compiling
-In order to compile and use TLS-Scanner, you need to have Java and Maven installed, as well as [TLS-Attacker](https://github.com/RUB-NDS/TLS-Attacker) in Version 2.8
+In order to compile and use TLS-Scanner, you need to have Java and Maven installed, as well as [TLS-Attacker](https://github.com/RUB-NDS/TLS-Attacker) in Version 2.9
 
 ```bash
 $ cd TLS-Scanner