diff --git a/docs/configuring-playbook-s3-goofys.md b/docs/configuring-playbook-s3-goofys.md
index 2efacddc..ef8f20c2 100644
--- a/docs/configuring-playbook-s3-goofys.md
+++ b/docs/configuring-playbook-s3-goofys.md
@@ -106,10 +106,10 @@ docker run -it --rm -w /work \
 --env='B2_KEY_ID=YOUR_KEY_GOES_HERE' \
 --env='B2_KEY_SECRET=YOUR_SECRET_GOES_HERE' \
 --env='B2_BUCKET_NAME=YOUR_BUCKET_NAME_GOES_HERE' \
--v /matrix/synapse/storage/media-store/:/work \
+--mount type=bind,src=/matrix/synapse/storage/media-store,dst=/work,ro \
 --entrypoint=/bin/sh \
-docker.io/tianon/backblaze-b2:2.1.0 \
--c 'b2 authorize-account $B2_KEY_ID $B2_KEY_SECRET > /dev/null && b2 sync /work/ b2://$B2_BUCKET_NAME'
+docker.io/tianon/backblaze-b2:3.6.0 \
+-c 'b2 authorize-account $B2_KEY_ID $B2_KEY_SECRET && b2 sync /work b2://$B2_BUCKET_NAME --skipNewer'
 ```
 
 This is some initial file sync, which may take a very long time.
diff --git a/docs/configuring-playbook-synapse-s3-storage-provider.md b/docs/configuring-playbook-synapse-s3-storage-provider.md
index 3490705a..7f2af49c 100644
--- a/docs/configuring-playbook-synapse-s3-storage-provider.md
+++ b/docs/configuring-playbook-synapse-s3-storage-provider.md
@@ -102,5 +102,5 @@ docker run -it --rm \
 --mount type=bind,src=/matrix/synapse/storage/media-store,dst=/work,ro \
 --entrypoint=/bin/sh \
 tianon/backblaze-b2:3.6.0 \
--c 'b2 authorize-account $B2_KEY_ID $B2_KEY_SECRET > /dev/null && b2 sync /work b2://$B2_BUCKET_NAME --skipNewer'
+-c 'b2 authorize-account $B2_KEY_ID $B2_KEY_SECRET && b2 sync /work b2://$B2_BUCKET_NAME --skipNewer'
 ```