diff --git a/share/spack/gitlab/cloud_pipelines/stacks/e4s/spack.yaml b/share/spack/gitlab/cloud_pipelines/stacks/e4s/spack.yaml
index 08462c961e..93e6b3fd06 100644
--- a/share/spack/gitlab/cloud_pipelines/stacks/e4s/spack.yaml
+++ b/share/spack/gitlab/cloud_pipelines/stacks/e4s/spack.yaml
@@ -70,6 +70,7 @@ spack:
   - charliecloud
   - conduit
   - datatransferkit
+  - dealii
   - dyninst
   - ecp-data-vis-sdk ~cuda ~rocm +adios2 +ascent +cinema +darshan +faodel +hdf5 +paraview +pnetcdf +sz +unifyfs +veloc ~visit +vtkm +zfp ^hdf5@1.14
   - exaworks