diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index 789945d..584e4fc 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -35,11 +35,11 @@ jobs:
     - name: Set build environment
       run: |
         year=$(date +%Y);
-        month=$(date +%m);
+        day=$(date +%j);
         ref="${GITHUB_REF#refs/*/}";
         echo "REF=$ref" >> $GITHUB_ENV;
         tag="${GITHUB_REF#tags/*/}";
-        [[ $tag == '' ]] || tag="${year}.${month}.${{ github.run_number }}";
+        [[ $tag == '' ]] || tag="${year}.${day}.${{ github.run_number }}";
         echo "TAG=$tag" >> $GITHUB_ENV;
     - name: Setup Pack
       run: |