diff --git a/.gitlab/ci/custom.images.yml b/.gitlab/ci/custom.images.yml
index 7dd5e8f..7c0f570 100644
--- a/.gitlab/ci/custom.images.yml
+++ b/.gitlab/ci/custom.images.yml
@@ -37,7 +37,7 @@ www-gitlab-com-debian-bullseye-ruby-3.2.4-node-18:
     matrix:
       - ARCH: [ 'arm64', 'amd64' ]
 
-www-gitlab-com-debian-bullseye-ruby-3.2.4-node-20:
+www-gitlab-com-debian-bookworm-ruby-3.2.4-node-20:
   extends: .build_static_image
   parallel:
     matrix:
diff --git a/README.md b/README.md
index d50f557..74d0ce3 100644
--- a/README.md
+++ b/README.md
@@ -106,9 +106,9 @@ new_image:
 
 Note that tag name is limited to 128 characters so amount of `minor components` an image can have is limited by it.
 
-#### Pushing a rebuild image
+#### Pushing a rebuilt image
 
-Images are built and pushed automatically after a merge request is merged.
+You might need to run a manual job to build and push a rebuilt image after a merge request is merged.
 
 ## Note regarding Google Chrome