diff --git a/spack.yaml b/spack.yaml
index 738c774ac7c617eb57b6c82e27a3b07b1bc91600..e278c469b6a9fd72346c42ce00c6332f55c0f070 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -55,7 +55,7 @@ spack:
     - py-tvb-framework@2.9
     - py-tvb-contrib@2.9.1
     - py-tvb-library@2.9.2
-#    - py-tvb-multiscale@2.1.0.ebrains
+    - py-tvb-multiscale@2.1.0.ebrains
     - py-tvb-widgets@2.1.0
     - py-tvb-ext-bucket
     - py-tvb-ext-unicore