diff --git a/qbox-lean.yaml b/qbox-lean.yaml
index 04a9c0b..e971c58 100644
--- a/qbox-lean.yaml
+++ b/qbox-lean.yaml
@@ -221,6 +221,11 @@ tasks:
     ref: main
     src: https://github.com/qbox-project/qbx_smallresources
 
+  - action: download_github
+    dest: ./resources/[qbx]/qbx_density
+    ref: main
+    src: https://github.com/Qbox-project/qbx_density
+
   - action: download_github
     dest: ./resources/[qbx]/qbx_cityhall
     ref: main