diff --git a/binder/postBuild b/binder/postBuild
index e983a61a1b..e3ea061da6 100644
--- a/binder/postBuild
+++ b/binder/postBuild
@@ -1,5 +1,8 @@
 #!/bin/bash
 set -euo pipefail
 
+# tmp
+jlpm && jlpm run build
+
 python -m pip install -e ".[dev,test]"
 jlpm develop