diff --git a/.drone.yml b/.drone.yml
index 22c8866..b8aeb91 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -10,7 +10,7 @@ steps:
 - name: binary
   image: clux/muslrust:nightly-2019-12-19
   commands:
-  - "apt-get -qq update && apt-get install -yqq --no-install-recommends libpq-dev "
+  - apt-get -qq update && apt-get install -yqq --no-install-recommends libpq-dev
   - make build
   environment:
     BUILD_VERSION: ${DRONE_TAG%-*}
@@ -128,4 +128,8 @@ trigger:
 depends_on:
 - build-container-amd64
 
+---
+kind: signature
+hmac: 63ee112a80ffc68684a7cd7e74e73be16247c904f1131b509fe852319e058b15
+
 ...