diff --git a/.docker/Dockerfile b/.docker/Dockerfile
index c234a0b81d6b7bf810a9d36c1ebc5767c73c0a56..0e72db6a53f1ddccc53f3b5d6d27483db8ff5be1 100644
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@@ -17,7 +17,6 @@ RUN rm -rf .git
 
 RUN apt-get install -y openjdk-11-jdk-headless
 
-
 # build and run tests
 CMD mkdir build && \
     cd build && \
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 226bfb1bbaff1b1db52903e6db22fefaf31330a2..96c791f297a59c5f1c5035803d70a61e1b0f4b24 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -77,7 +77,7 @@ build-testenv:
       - schedules
       - web
     changes:
-      - .docker/*
+      - .docker/Dockerfile
   script:
     - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY