diff --git a/docs/phase5/README.md b/docs/phase5/README.md
index 6d91572a..2a38093e 100644
--- a/docs/phase5/README.md
+++ b/docs/phase5/README.md
@@ -29,8 +29,8 @@ AWS | [Flaws2.Cloud](http://flaws2.cloud/)| Similar to the original Flaws.Cloud
 AWS | [Cloud Goat](https://github.com/RhinoSecurityLabs/cloudgoat)| CloudGoat is Rhino Security Labs' "Vulnerable by Design" AWS deployment tool that allows you to hone your cloud cybersecurity skills by creating and completing several "capture-the-flag" style scenarios. |
 AWS | [Sadcloud](https://github.com/nccgroup/sadcloud)| Sadcloud is a tool for spinning up insecure AWS infrastructure with Terraform. You can test your AWS security knowledge against these infrastructure. |
 AWS | [AWS Well-Architected Labs: Security](https://www.wellarchitectedlabs.com/security/)| The security labs are documentation and code in the format of hands-on labs to help you learn, measure, and build using architectural best practices. |
-AWS | [Attack Detection Fundamentals](https://labs.f-secure.com/blog/attack-detection-fundamentals-2021-aws-lab-1/)| This three-part series explores an end-to-end kill chain in AWS and log entries for detection & analysis. |
-Azure | [Attack Detection Fundamentals](https://labs.f-secure.com/blog/attack-detection-fundamentals-2021-azure-lab-1/)| This three-part series explores an end-to-end kill chain in Azure and log entries for detection & analysis. |
+AWS | [Attack Detection Fundamentals](https://labs.withsecure.com/publications/attack-detection-fundamentals-2021-aws-lab-1)| This three-part series explores an end-to-end kill chain in AWS and log entries for detection & analysis. |
+Azure | [Attack Detection Fundamentals](https://labs.withsecure.com/publications/attack-detection-fundamentals-2021-azure-lab-1)| This three-part series explores an end-to-end kill chain in Azure and log entries for detection & analysis. |
 Azure | [CONVEX](https://github.com/Azure/CONVEX)| Cloud Open-source Network Vulnerability Exploitation eXperience (CONVEX) spins up Capture The Flag environments in your Azure tenant for you to play through.  |
 Azure | [Securing Azure Infrastructure - Hands on Lab Guide](https://github.com/azurecitadel/azure-security-lab)| A hands on guide to securing azure infrastructure using various azure security controls. |
 Azure | [Azure Security Technologies](https://microsoftlearning.github.io/AZ500-AzureSecurityTechnologies/)| Various labs scenarios covering azure security. |