diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a9c98306..cdfc6596 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -53,7 +53,7 @@ secret_detection:
 
 test-3.8-core:
   <<: *only-default
-  image: python:3.8-trixie
+  image: python:3.8-bookworm
   script:
     - tox -e py38-core
   artifacts: