diff --git a/docs/spack-package_requirements.org b/docs/spack-package_requirements.org
index e9e592fc87815648b7ed2051b1b23ed12ae862c3..0744122f3632f4b2770d7539ae3eb2434cb674b8 100644
--- a/docs/spack-package_requirements.org
+++ b/docs/spack-package_requirements.org
@@ -5,6 +5,9 @@ Octopus CI and the interface Octopus <-> third-party code does not depend on how
 the other packages are compiled
 
 ** ELPA
+- As of Dec. 2024 (discussed in the monthly Octopus meeting, https://gitlab.com/octopus-code/octopus/-/issues/1129):
+  - Octopus+OpenMP requires (?) ELPA+OpenMP (the CMake configuration does not search for ELPA~OpenMP)
+  - Octoups~OpenMP requires ELPA~OpenMP (pkconfig unconditionally brings in ~-fopenmp~ -> Octopus would compile with OpenMP; hence we cannot support it)
 - In EasyBuild ELPA is provided with and without OpenMP support in one prefix
   (different sonames)
 - In Spack up to release ~23c~ we only provide ELPA with OpenMP support