diff --git a/.drone.yml b/.drone.yml
index df528d0..4432ce3 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -32,7 +32,8 @@ name: Sandbox deploy
 
 steps:
 - name: build
-  image: golang:1.17-buster
+  # image: golang:1.17-buster # this one is used in production
+  image: golang:1.17-bullseye # this one is used in sandbox
   commands:
   - go mod tidy
   - make build