diff --git a/.drone.yml b/.drone.yml
index 8d07bcf..4867161 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -1,3 +1,4 @@
+---
 kind: pipeline
 type: docker
 name: CI build
@@ -41,3 +42,8 @@ volumes:
   - name: cache
     host:
       path: /var/lib/drone/tmp
+---
+kind: signature
+hmac: f9a8cf97f6596625721365f6238f6f298aa5a7a4de10c3fb61c57202ae9d1ee1
+
+...