diff --git a/projects/README.md b/projects/README.md
index 7fb29afcf2..91b043cc5c 100644
--- a/projects/README.md
+++ b/projects/README.md
@@ -48,3 +48,4 @@ External projects in the community that use detectron2:
 + [BCNet](https://github.com/lkeab/BCNet), a bilayer decoupling instance segmentation method.
 + [DD3D](https://github.com/TRI-ML/dd3d), A fully convolutional 3D detector.
 + [detrex](https://github.com/IDEA-Research/detrex), a detection toolbox for transformer-based detection algorithms including Deformable-DETR, DAB-DETR, DN-DETR, DINO, etc.
++ [ALDI](https://github.com/justinkay/aldi), Domain adaptive object detection.