diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 00000000..a62d4f1c
Binary files /dev/null and b/.DS_Store differ
diff --git a/go.mod b/go.mod
index 5668f8a6..72d93f0d 100644
--- a/go.mod
+++ b/go.mod
@@ -38,7 +38,7 @@ require (
 	github.com/stretchr/testify v1.8.1
 	github.com/tetratelabs/wazero v1.0.0-pre.4
 	github.com/thejerf/suture/v4 v4.0.2
-	github.com/wetware/casm v0.0.0-20230103165725-c29acf614f84
+	github.com/wetware/casm v0.0.0-20230111190411-32f57045e0d4
 	golang.org/x/sync v0.1.0
 	gopkg.in/alexcesaro/statsd.v2 v2.0.0
 )
diff --git a/go.sum b/go.sum
index 04cff7f2..84ac062a 100644
--- a/go.sum
+++ b/go.sum
@@ -466,8 +466,8 @@ github.com/urfave/cli/v2 v2.23.7/go.mod h1:GHupkWPMM0M/sj1a2b4wUrWBPzazNrIjouW6f
 github.com/viant/assertly v0.4.8/go.mod h1:aGifi++jvCrUaklKEKT0BU95igDNaqkvz+49uaYMPRU=
 github.com/viant/toolbox v0.24.0/go.mod h1:OxMCG57V0PXuIP2HNQrtJf2CjqdmbrOx5EkMILuUhzM=
 github.com/warpfork/go-wish v0.0.0-20200122115046-b9ea61034e4a h1:G++j5e0OC488te356JvdhaM8YS6nMsjLAYF7JxCv07w=
-github.com/wetware/casm v0.0.0-20230103165725-c29acf614f84 h1:++13uCsaHApqYq4llKyKNYQM6qtjrTAYqLlvGNpWrfs=
-github.com/wetware/casm v0.0.0-20230103165725-c29acf614f84/go.mod h1:hNSpIZKBzkQtZBw3D17iznaMb+7dA52pbfYscE4T1Qc=
+github.com/wetware/casm v0.0.0-20230111190411-32f57045e0d4 h1:vJA/XG+wrvMqT6Swy+0LogetHXMxRyuPTYzN/QOdpNE=
+github.com/wetware/casm v0.0.0-20230111190411-32f57045e0d4/go.mod h1:QAPoA9c6Sv7akZEGAby3mmCGKpBucwAyTjHgJ4tWj7U=
 github.com/whyrusleeping/go-keyspace v0.0.0-20160322163242-5b898ac5add1 h1:EKhdznlJHPMoKr0XTrX+IlJs1LH3lyx2nfr1dOlZ79k=
 github.com/whyrusleeping/go-keyspace v0.0.0-20160322163242-5b898ac5add1/go.mod h1:8UvriyWtv5Q5EOgjHaSseUEdkQfvwFv1I/In/O2M9gc=
 github.com/whyrusleeping/timecache v0.0.0-20160911033111-cfcb2f1abfee h1:lYbXeSvJi5zk5GLKVuid9TVjS9a0OmLIDKTfoZBL6Ow=
diff --git a/pkg/csp/chan.go b/pkg/csp/chan.go
index 2648931e..fd7c1b66 100644
--- a/pkg/csp/chan.go
+++ b/pkg/csp/chan.go
@@ -7,8 +7,6 @@ import (
 	"errors"
 
 	"capnproto.org/go/capnp/v3"
-	"capnproto.org/go/capnp/v3/exp/clock"
-	"capnproto.org/go/capnp/v3/flowcontrol/bbr"
 	casm "github.com/wetware/casm/pkg"
 	"github.com/wetware/casm/pkg/util/stream"
 	"github.com/wetware/ww/internal/api/channel"
@@ -209,7 +207,7 @@ func (s Sender) Send(ctx context.Context, v Value) (casm.Future, capnp.ReleaseFu
 // for a given sender.
 func (s Sender) NewStream(ctx context.Context) SendStream {
 	sender := channel.Sender(s)
-	sender.SetFlowLimiter(bbr.NewLimiter(clock.System))
+	// TODO:  use BBR once scheduler bug is fixed
 
 	return SendStream{
 		ctx:    ctx,
diff --git a/pkg/pubsub/topic.go b/pkg/pubsub/topic.go
index 7697e1ec..b18b9608 100644
--- a/pkg/pubsub/topic.go
+++ b/pkg/pubsub/topic.go
@@ -4,8 +4,6 @@ import (
 	"context"
 
 	"capnproto.org/go/capnp/v3"
-	"capnproto.org/go/capnp/v3/exp/clock"
-	"capnproto.org/go/capnp/v3/flowcontrol/bbr"
 	pubsub "github.com/libp2p/go-libp2p-pubsub"
 	"github.com/lthibault/log"
 
@@ -57,7 +55,7 @@ func (t Topic) Publish(ctx context.Context, b []byte) error {
 // through a flow-controlled channel.   This will override the existing
 // FlowLimiter.
 func (t Topic) NewStream(ctx context.Context) Stream {
-	api.Topic(t).SetFlowLimiter(bbr.NewLimiter(clock.System))
+	// TODO:  use BBR once scheduler bug is fixed
 
 	cherr := make(chan error, 1)
 	done := make(chan struct{})
@@ -235,7 +233,7 @@ func (t topicServer) Subscribe(ctx context.Context, call MethodSubscribe) error
 	defer sub.Cancel()
 
 	sender := call.Args().Chan()
-	sender.SetFlowLimiter(bbr.NewLimiter(clock.System))
+	// TODO:  use BBR once scheduler bug is fixed
 
 	t.log.Debug("registered subscription handler")
 	defer t.log.Debug("unregistered subscription handler")