diff --git a/communication/slack-config/channels.yaml b/communication/slack-config/channels.yaml
index 3fc9d482c1f..96d68a7546d 100644
--- a/communication/slack-config/channels.yaml
+++ b/communication/slack-config/channels.yaml
@@ -143,6 +143,8 @@ channels:
   - name: fiaas
   - name: finops
   - name: fi-users
+  - name: flannel
+  - name: flannel-dev
   - name: flatcar
   - name: flink-operator
   - name: fr-events