diff --git a/swh/templates/storage-replayer/configmap.yaml b/swh/templates/storage-replayer/configmap.yaml
index 24cf9129d2c8d794256e3ed8bb99cfdef92ccdf9..83ba6d1b029bee96ff9f43b26b8f3a69f87dbcfd 100644
--- a/swh/templates/storage-replayer/configmap.yaml
+++ b/swh/templates/storage-replayer/configmap.yaml
@@ -17,6 +17,18 @@ data:
       {{- else if .pipelineFilterRetry }}
       cls: pipeline
       steps:
+        - cls: buffer
+          min_batch_size:
+            content: 1000
+            content_bytes: 52428800  # 50 MB
+            directory: 1000
+            directory_entries: 12000
+            revision: 1000
+            revision_parents: 2000
+            revision_bytes: 52428800
+            release: 1000
+            release_bytes: 52428800
+            extid: 1000
         - cls: filter
         - cls: retry
         - cls: {{ .storageClass }}