diff --git a/devplanetv2/dev-environments/binamb-helm/values.yaml b/devplanetv2/dev-environments/binamb-helm/values.yaml
index c19d94a..a025645 100644
--- a/devplanetv2/dev-environments/binamb-helm/values.yaml
+++ b/devplanetv2/dev-environments/binamb-helm/values.yaml
@@ -5,7 +5,7 @@ name: binamb-helm
 
 # What branch of helm -- http://github.com/uc-cdis/gen3-helm
 # helmBranch: chore/add_workspace_launch_test
-helmBranch: master
+helmBranch: test/binam-batch-indexing
 
 # What branch of gitops -- http://github.com/uc-cdis/gen3-gitops-dev
 gitopsBranch: master
diff --git a/devplanetv2/dev-environments/binamb-helm/values/values.yaml b/devplanetv2/dev-environments/binamb-helm/values/values.yaml
index 3526e8d..9934e07 100644
--- a/devplanetv2/dev-environments/binamb-helm/values/values.yaml
+++ b/devplanetv2/dev-environments/binamb-helm/values/values.yaml
@@ -82,7 +82,7 @@ datareplicate:
     JOB_DEFINITION: binamb-planx-pla-net-bucket-replicate-jqhu-batch_job_definition
     OUTPUT_MANIFEST_BUCKET: test-data-replication-manifest
     MULTIPART_THRESHOLD: 1
-    CHUNK_SIZE: 512
+    CHUNK_SIZE: 64
   removeObjectsFromCloudsJob:
     enabled: false
     suspendCronjob: true