diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 636f47c..eadac96 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,7 +1,7 @@
-image: ${REGISTRY}/it/docker:19.03.1
+image: ${REGISTRY}/it/docker:20.10.21-dind
 
 services:
-  - name: ${REGISTRY}/it/docker:19.03.1-dind
+  - name: ${REGISTRY}/it/docker:20.10.21-dind
     alias: docker
 
 variables:
diff --git a/Dockerfile.scratch b/Dockerfile.scratch
index 4941616..ea62d9a 100644
--- a/Dockerfile.scratch
+++ b/Dockerfile.scratch
@@ -11,7 +11,7 @@ RUN cp -r /usr/local/lib/$( \
     cp -r ${JAVA_HOME} /usr/local/openjdk
 
 
-FROM python:3.9-slim AS build
+FROM python:3.9.18-slim-bookworm AS build
 
 WORKDIR /build
 RUN mkdir /scratch_tmp