diff --git a/README.md b/README.md
index a72ebc2..2a9c847 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ A collection of awesome penetration testing resources
 * [Security related Operating Systems @ Rawsec](http://rawsec.ml/en/security-related-os/) - Complete list of security related operating systems
 * [Best Linux Penetration Testing Distributions @ CyberPunk](https://n0where.net/best-linux-penetration-testing-distributions/) - Description of main penetration testing distributions
 * [Security @ Distrowatch](http://distrowatch.com/search.php?category=Security) - Website dedicated to talking about, reviewing and keeping up to date with open source operating systems
-* [cuckoo](https://cuckoosandbox.org/) - Cuckoo Sandbox is a malware analysis system
+* [cuckoo](https://github.com/cuckoosandbox/cuckoo) - An open source automated malware analysis system
 * [CAINE](http://www.caine-live.net/) - (Computer Aided INvestigative Environment) is an Italian GNU/Linux live distribution created as a Digital Forensics project
 * [DEFT](http://www.deftlinux.net/) - Digital Evidence & Forensics Toolkit Live OS
 * [Tails](https://tails.boum.org/) - Live OS aimed at preserving privacy and anonymity
@@ -156,7 +156,7 @@ A collection of awesome penetration testing resources
 * [netsniff-ng](https://github.com/netsniff-ng/netsniff-ng) - A Swiss army knife for for network sniffing
 * [Intercepter-NG](http://sniff.su/) - a multifunctional network toolkit
 * [SPARTA](http://sparta.secforce.com/) - Network Infrastructure Penetration Testing Tool
-* [dnschef](http://thesprawl.org/projects/dnschef/) - A highly configurable DNS proxy for pentesters
+* [dnschef](https://github.com/iphelix/dnschef) - A highly configurable DNS proxy for pentesters
 * [DNSDumpster](https://dnsdumpster.com/) - Online DNS recon and search service
 * [dnsenum](https://github.com/fwaeytens/dnsenum/) - Perl script that enumerates DNS information from a domain, attempts zone transfers, performs a brute force dictionary style attack, and then performs reverse look-ups on the results
 * [dnsmap](https://github.com/makefu/dnsmap/) - Passive DNS network mapper