diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 510aff1d055926e86c4469bdcfab83b3e9d1b506..3c87aef6726612c6a406494445dab90f0e22aefc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,6 +1,7 @@
 variables:
-  HOSTALIASES: ./hosts
+  HOSTALIASES: "./hosts"
   DOCKER_HOST: "unix:///var/run/dind/docker.sock"
+  DOCKER_BUILDKIT: "1"
   TESTCONTAINERS_RYUK_DISABLED: "false"
   ALPINE_VERSION: "3.21"
   PYTHON_VERSION: "3.11"
@@ -9,7 +10,7 @@ variables:
   DOC_VERSION: "1.6"
   APP_VERSION: "1.6.0"
   CHART_VERSION: "1.6.0"
-  CACHE_FALLBACK_KEY: ${CI_DEFAULT_BRANCH}
+  CACHE_FALLBACK_KEY: "${CI_DEFAULT_BRANCH}"
   # This will supress any download for dependencies and plugins or upload messages which would clutter the console log.
   # `showDateTime` will show the passed time in milliseconds. You need to specify `--batch-mode` to make this work.
   MAVEN_OPTS: "-Dhttps.protocols=TLSv1.2 -Dmaven.repo.local=$CI_PROJECT_DIR/.m2/repository -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=WARN -Dorg.slf4j.simpleLogger.showDateTime=true -Djava.awt.headless=true -Dstyle.color=always"