diff --git a/spack-environment/dev/spack.yaml b/spack-environment/dev/spack.yaml
index 73cba0f6b1c16ea101b625ce869c96b6225d4234..200ca18887d288e524db3c3e978798deab50f13d 100644
--- a/spack-environment/dev/spack.yaml
+++ b/spack-environment/dev/spack.yaml
@@ -70,6 +70,7 @@ spack:
   - py-mplhep
   - py-htgettoken
   - py-numpy
+  - py-onnxruntime
   - py-pandas
   - py-pip
   - py-pre-commit