diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f2f32c2..9f87ed7 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -10,7 +10,7 @@ stages:
 variables:
   DEPS: build-essential git
   WANT_BUILD_DEPS: "true"
-  IMAGE: debian:bullseye
+  IMAGE: pureos/byzantium
   COMMON_BUILD_OPTS: --werror
 
 before_script: