diff --git a/container_definitions/amd64/py-brain-indexer/spack.yaml b/container_definitions/amd64/py-brain-indexer/spack.yaml
index 22cc4a8..be83cba 100644
--- a/container_definitions/amd64/py-brain-indexer/spack.yaml
+++ b/container_definitions/amd64/py-brain-indexer/spack.yaml
@@ -1,3 +1,6 @@
 ---
 spack:
   specs: [py-brain-indexer+mpi]
+  packages:
+    py-numpy-quaternion:
+      require: "~numba~scipy"