diff --git a/ansible/group_vars/all.yaml b/ansible/group_vars/all.yaml
index 4f9cd3d..bebb293 100644
--- a/ansible/group_vars/all.yaml
+++ b/ansible/group_vars/all.yaml
@@ -28,7 +28,7 @@ clean_finish: no
 # Blank assumes no registry (i.e. 'docker.io')
 nextflow_container_registry: ''
 nextflow_container_name: informaticsmatters/fragmentor
-nextflow_container_tag: '1.2.0'
+nextflow_container_tag: '1.2.1'
 
 # Memory requested by the 'sort' processes in the nextflow workflow
 # (namely fragmentation and combination). Where it's actually used