diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7f8b29f2b6ae6908e9dadf9ff20966c91348fa31..6df4b50b817b337425d7249ee64cc9639774514a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -18,7 +18,7 @@ build-image:
         entrypoint: [""]
     script:
         - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
-        - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile --destination $CI_REGISTRY_IMAGE/videoag_api_testing:$CI_COMMIT_TAG
+        - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile --destination $CI_REGISTRY_IMAGE/videoag_api_testing:$CI_COMMIT_SHA
 
 run-tests:
     stage: test
@@ -26,7 +26,7 @@ run-tests:
     variables:
         VIDEOAG_API_CONFIG: $CI_PROJECT_DIR/config/api_example_config
     image:
-        name: registry.git.fsmpi.rwth-aachen.de/videoag/backend_api/videoag_api_testing:$CI_COMMIT_TAG
+        name: registry.git.fsmpi.rwth-aachen.de/videoag/backend_api/videoag_api_testing:$CI_COMMIT_SHA
         entrypoint: [""]
     script:
         - $CI_PROJECT_DIR/docker_start.sh -test
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