diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e633745..e02eb34 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -136,8 +136,13 @@ jobs:
 
       - name: Get current version
         id: labels
+        shell: bash
         run: |
           ver=$(skopeo inspect docker://ghcr.io/ublue-os/${{ matrix.image_name }}-main:${{ matrix.major_version }} | jq -r '.Labels["org.opencontainers.image.version"]')
+          if [ -z "$ver" ] || [ "null" = "$ver" ]; then
+            echo "inspected image version must not be empty or null"
+            exit 1
+          fi
           echo "VERSION=$ver" >> $GITHUB_OUTPUT
 
       # Build metadata