diff --git a/internal/assignmentqueue/jetstream.go b/internal/assignmentqueue/jetstream.go
index 93525a8..c3d8f14 100644
--- a/internal/assignmentqueue/jetstream.go
+++ b/internal/assignmentqueue/jetstream.go
@@ -167,7 +167,7 @@ func OpenConsumer(ctx context.Context, manager consumerManager, stream, subjectB
 		AckPolicy:     jetstream.AckExplicitPolicy,
 		AckWait:       5 * time.Minute,
 		MaxAckPending: capacity,
-		MaxDeliver:    20,
+		MaxDeliver:    1000,
 	})
 	if err != nil {
 		return nil, fmt.Errorf("open %s assignment consumer: %w", backend, err)
diff --git a/internal/assignmentqueue/jetstream_test.go b/internal/assignmentqueue/jetstream_test.go
index 6ff7254..4bc39bf 100644
--- a/internal/assignmentqueue/jetstream_test.go
+++ b/internal/assignmentqueue/jetstream_test.go
@@ -205,7 +205,7 @@ func TestOpenConsumerUsesIndependentDurablePerBackend(t *testing.T) {
 	if _, err := OpenConsumer(context.Background(), manager, "CI_RUNNER", "ci.assignment", taskassignment.BackendPod, 4); err != nil {
 		t.Fatal(err)
 	}
-	if manager.config.Durable != "pod" || manager.config.FilterSubject != "ci.assignment.pod" || manager.config.AckPolicy != jetstream.AckExplicitPolicy || manager.config.MaxAckPending != 4 {
+	if manager.config.Durable != "pod" || manager.config.FilterSubject != "ci.assignment.pod" || manager.config.AckPolicy != jetstream.AckExplicitPolicy || manager.config.MaxAckPending != 4 || manager.config.MaxDeliver != 1000 {
 		t.Fatalf("config = %#v", manager.config)
 	}
 }