diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index cd1da72..571fde7 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,6 +4,8 @@ docker-build:
   stage: build
   services:
     - docker:dind
+  tags:
+    - big-build
   before_script:
     - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
   # Default branch leaves tag empty (= latest tag)