diff --git a/README.md b/README.md
index 8e2f73ca..f4194c74 100644
--- a/README.md
+++ b/README.md
@@ -8,11 +8,13 @@ vulnerability-lookup is a rewrite of cve-search to support fast vulnerability lo
 - Modular system to import different vulnerability sources.
 - An API for adding new vulnerability including ID assigment, state and disclosure. 
 
-## Feeders
+## Sources and Feeders
 
+- [CISA Known](https://www.cisa.gov/known-exploited-vulnerabilities-catalog) exploited vulnerability DB (via HTTP)
 - NIST NVD CVE importer (via API 2.0)
 - Cloud Security Alliance - [GSD-Database](https://github.com/cloudsecurityalliance/gsd-database/) (via git submodule repository)
 - GitHub [Advisory Database](https://github.com/github/advisory-database) (via git submodule repository)
+- PySec [Advisory Database](https://github.com/pypa/advisory-database) (via git submodule repository)
 
 ## Requirements