diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9b4070edd02172f71471f80f56b85f09b8125d84..b042d398d1547939955d922f6024bb96fe2cd4bb 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,6 +9,10 @@ docker-build:
     DOCKER_TLS_CERTDIR: "/certs"
   before_script:
     - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
+  cache:
+    key: ${CI_PROJECT_ID}
+    paths:
+      - .docker/cache
   # All branches are tagged with $DOCKER_IMAGE_NAME (defaults to commit ref slug)
   # Default branch is also tagged with `latest`
   script: