diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 911b0beb2e48cef9919e3f4ef747eb5585687870..e0fc3985da00ada402cac89210dd0005ce07cfff 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,6 +7,7 @@ stages:
 
 install:
   stage: install
+  image: debian:bookworm
   script:
   - apt-get update -y
   - apt-get dist-upgrade -y
@@ -24,6 +25,7 @@ install:
 
 lint:
   stage: lint
+  image: debian:bookworm
   needs: [install]
   script:
   - bin/pycodestyle --first --show-source --ignore=E501 *.py