diff --git a/projects/README.md b/projects/README.md
index d13d2cf..f6c343c 100644
--- a/projects/README.md
+++ b/projects/README.md
@@ -14,6 +14,7 @@ Note that these are research projects, and therefore may not have the same level
 - [Attribute Recognition](https://github.com/JDAI-CV/fast-reid/tree/master/projects/FastAttr)
 - [Hyper-Parameters Optimization](https://github.com/JDAI-CV/fast-reid/tree/master/projects/FastTune)
 - [Overhaul Distillation](https://github.com/JDAI-CV/fast-reid/tree/master/projects/FastDistill)
+- Semi-Supervised Domain Generalizable Person Re-Identification [Code](https://github.com/xiaomingzhid/sskd)[paper](https://arxiv.org/pdf/2108.05045.pdf)
 
 # External Projects
 
@@ -21,4 +22,4 @@ External projects in the community that use fastreid:
 
 # Competitions
 
-- NAIC20 reid track [1-st solution](https://github.com/JDAI-CV/fast-reid/tree/master/projects/NAIC20) 
\ No newline at end of file
+- NAIC20 reid track [1-st solution](https://github.com/JDAI-CV/fast-reid/tree/master/projects/NAIC20)