diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4e60b45..9e67233 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -27,7 +27,7 @@ ng_build:
       IMAGE_TAG_BASE: $CI_REGISTRY_IMAGE:$CI_COMMIT_BRANCH-$CI_COMMIT_SHORT_SHA
       LATEST_TAG: $CI_REGISTRY_IMAGE:latest
   script:
-    - export IMAGE_TAG="$IMAGE_TAG_BASE-$(date +%F.%H%M%S)"
+    - export IMAGE_TAG="$IMAGE_TAG_BASE-$(date +%s)"
     - mkdir -p /kaniko/.docker
     - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > "/kaniko/.docker/config.json"
     - /kaniko/executor --context . $KANIKO_CACHE_ARGS --destination $IMAGE_TAG --destination $CI_REGISTRY_IMAGE:latest