diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 770d507e5764c9c55d2cb5f098f8e9b884d9e015..d7114345ccc29f58f74268e6f95e68817c54e4b4 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -12,6 +12,9 @@ stages:
 test:
   stage: test
   script:
+  # clean all dangaling containers
+   - docker kill $(docker ps -q)
+   - docker rm $(docker ps -a -q)
    - scripts/setBasePath.sh https://forge.etsi.org/rep/NGSI-LD/NGSI-LD/raw/master http://localhost:8090
    - docker run --rm -d -v ${PWD}/:/ngsi  -e FOLDER=/ngsi  -p 8090:8080 halverneus/static-file-server
    - docker run --network host -i -v ${PWD}/:/data wistefan/redocly-openapi-cli bundle /data/spec/updated/ngsi-ld-spec-open-api.json -o /data/spec/updated/full_api.json