diff --git a/nextflow.config b/nextflow.config
index a65eebd..6b9c8ff 100755
--- a/nextflow.config
+++ b/nextflow.config
@@ -86,7 +86,7 @@ profiles {
 				memory='120 GB'
 			}
 			withName:COUNT_ATAC {
-				container = "$params.container_dir/cellranger-arc/latest/cellranger-atac.simg"
+				container = "$params.container_dir/cellranger-atac/v2.1.0/cellranger-atac.simg"
 				executor='slurm'
 				time='2d'
 				cpus='16'