diff --git a/containers/Singularity/centos-7.def b/containers/Apptainer/centos-7.def
similarity index 100%
rename from containers/Singularity/centos-7.def
rename to containers/Apptainer/centos-7.def
diff --git a/containers/Singularity/leap-15.def b/containers/Apptainer/leap-15.def
similarity index 100%
rename from containers/Singularity/leap-15.def
rename to containers/Apptainer/leap-15.def
diff --git a/containers/Singularity/rocky-8.def b/containers/Apptainer/rocky-8.def
similarity index 100%
rename from containers/Singularity/rocky-8.def
rename to containers/Apptainer/rocky-8.def