diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b6f682bbffb931a9fcde587b9a6bae2514534331..69fdc8efe6e3b33820133c6cc9759619007e2643 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -32,11 +32,22 @@ build:
   stage: build
   needs: []
   image:
-    name: gcr.io/kaniko-project/executor:debug
+    name: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/moby/buildkit:rootless
     entrypoint: [""]
+  variables:
+    BUILDKITD_FLAGS: --oci-worker-no-process-sandbox
+  before_script:
+    - mkdir ~/.docker
+    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > ~/.docker/config.json
   script:
-    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
-    - /kaniko/executor --cache=true --context "$CI_PROJECT_DIR" --dockerfile "$CI_PROJECT_DIR/docker/Dockerfile" --destination "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:$CI_COMMIT_SHA" --destination "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:latest"
+    - |
+      buildctl-daemonless.sh build \
+          --frontend=dockerfile.v0 \
+          --local context=. \
+          --local dockerfile=docker \
+          --output type=image,\"name=$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:$CI_COMMIT_SHA,$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:latest\",push=true \
+          --import-cache type=registry,ref=$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:buildcache \
+          --export-cache type=registry,ref=$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:buildcache,mode=max
 
 prospector:
   stage: qa
@@ -50,13 +61,13 @@ prospector:
     reports:
       junit: prospector-output.xml
   script:
-    - prospector --profile ci | sed 's|<\(\/\?\)error\(.*\)>|<\1failure\2>|' >  prospector-output.xml
+    - prospector --profile ci > prospector-output.xml
 
 black:
   stage: qa
   needs: []
   image:
-    name: registry.cri.epita.fr/cri/docker/black:3-slim
+    name: registry.cri.epita.fr/cri/docker/black/master:3.9-buster
     entrypoint: [""]
   allow_failure: true
   artifacts: