diff --git a/spack.yaml b/spack.yaml
index 7ee66b5235faf0c5630362d1d3826c6241875102..e91a97da39c99b840e4682c74793f41d9197081c 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -7,6 +7,8 @@ spack:
     - py-ipython %gcc@10.3.0
     - py-ipykernel %gcc@10.3.0
     - py-notebook %gcc@10.3.0
+    # Collab utils
+    - clb-nb-utils@0.1.0 %gcc@10.3.0 
     # General
     - py-pip %gcc@10.3.0
     - py-numpy %gcc@10.3.0