diff --git a/.github/workflows/deploy-image.yml b/.github/workflows/deploy-image.yml
index 3dc7ef8..38ccb4a 100644
--- a/.github/workflows/deploy-image.yml
+++ b/.github/workflows/deploy-image.yml
@@ -34,5 +34,10 @@ jobs:
       - name: Build an apptainer image
         run: apptainer build --build-arg PYBIOCLIP_VERSION=1.0.0 apptainer.sif apptainer.def
 
+      - name: Create lowercase image name
+        id: lc_image_name
+        run: |
+          echo "IMAGE_NAME=$( ${{ env.IMAGE_NAME}} | awk '{print tolower($0)}')"
+
       - name: Publish apptainer image
-        run: apptainer push apptainer.sif oras://${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-sif:1.0.0
+        run: apptainer push apptainer.sif oras://${{ env.REGISTRY }}/${{ steps.lc_image_name.outputs.IMAGE_NAME }}-sif:1.0.0