diff --git a/spack-environment/xl/spack.yaml b/spack-environment/xl/spack.yaml
index 8713733bc9a5eda3fa979acfb47c58683fe3190b..2c8675284e6e4db87f6124f3fe8774d4b3d0cfca 100644
--- a/spack-environment/xl/spack.yaml
+++ b/spack-environment/xl/spack.yaml
@@ -99,7 +99,6 @@ spack:
   - py-rucio-clients
   - py-scipy
   - py-seaborn
-  - py-snakemake-executor-plugin-htcondor
   - py-snakemake-executor-plugin-slurm
   - py-snakemake-executor-plugin-slurm-jobstep
   - py-snakemake-storage-plugin-fs