diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 84ba250..5d6b35f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,7 +5,7 @@ stages:
   - check
   - build
 check:
-  image: python:3.11-bullseye
+  image: python:3.11-bookworm
   stage: check
   script:
     - apt-get update