diff --git a/notification-channel-config-service-api/src/main/proto/org/hypertrace/notification/config/service/v1/notification_channel.proto b/notification-channel-config-service-api/src/main/proto/org/hypertrace/notification/config/service/v1/notification_channel.proto
index 85f88917..922d538e 100644
--- a/notification-channel-config-service-api/src/main/proto/org/hypertrace/notification/config/service/v1/notification_channel.proto
+++ b/notification-channel-config-service-api/src/main/proto/org/hypertrace/notification/config/service/v1/notification_channel.proto
@@ -24,6 +24,7 @@ enum WebhookFormat {
 message WebhookChannelConfig {
   string url = 1;
   WebhookFormat format = 2;
+  map<string, string> headers = 3;
 }
 
 message EmailChannelConfig {