diff --git a/spack.yaml b/spack.yaml
index 692bebdf25f3812903040b19b4b54cc10e37e7cc..571a2ca032275276d304588aa472019ec7468c52 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -29,6 +29,7 @@ spack:
     - py-formencode
     - tvb-framework ^binutils+ld+gold
     - pynn-brainscales@2.0-rc1 ^log4cxx@0.10.0 ^googletest@1.11.0:+gmock
+    - py-neo
     #- oppulance@2.0-rc1
     #- py-cerebstats
     #- py-cerebunit