diff --git a/share/spack/gitlab/cloud_pipelines/stacks/e4s/spack.yaml b/share/spack/gitlab/cloud_pipelines/stacks/e4s/spack.yaml
index bec7ab58d18..62dd50dccf9 100644
--- a/share/spack/gitlab/cloud_pipelines/stacks/e4s/spack.yaml
+++ b/share/spack/gitlab/cloud_pipelines/stacks/e4s/spack.yaml
@@ -345,6 +345,7 @@ spack:
         - trilinos
         - vtk-h
         - vtk-m
+        - warpx
         runner-attributes:
           image: { "name": "ghcr.io/scottwittenburg/ecpe4s-ubuntu18.04-runner-x86_64:2020-09-01", "entrypoint": [""] }
           tags: ["spack", "public", "xlarge", "x86_64"]