diff --git a/src/stores/NetworkStore.js b/src/stores/NetworkStore.js
index 2503e9f..818d2aa 100644
--- a/src/stores/NetworkStore.js
+++ b/src/stores/NetworkStore.js
@@ -16,6 +16,7 @@ import ChannelStore from './ChannelStore'
 
 import Logger from '../utils/logger'
 import WorkerProxy from '../utils/worker-proxy'
+import { createWeeklyChannelName } from '../utils/channels'
 
 configure({ enforceActions: 'observed' })
 
@@ -63,7 +64,7 @@ export default class NetworkStore {
   swarmPeers = []
 
   @observable
-  defaultChannels = window.location.href.match('localhost:') ? ['orbit-dev'] : ['orbit']
+  defaultChannels = window.location.href.match('localhost:') ? [createWeeklyChannelName('orbit-dev')] : [createWeeklyChannelName('orbit')]
 
   // Public instance getters
 
diff --git a/src/utils/channels.js b/src/utils/channels.js
new file mode 100644
index 0000000..2f43003
--- /dev/null
+++ b/src/utils/channels.js
@@ -0,0 +1,9 @@
+import getWeek from 'date-fns/getWeek'
+import getYear from 'date-fns/getYear'
+
+export function createWeeklyChannelName (channelName) {
+  const now = Date.now()
+  const year = getYear(now)
+  const week = getWeek(now)
+  return channelName + '-' + year + '-' + week
+}