diff --git a/.github/workflows/docker-prod.yml b/.github/workflows/docker-prod.yml
index e392c92..745e1fc 100644
--- a/.github/workflows/docker-prod.yml
+++ b/.github/workflows/docker-prod.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Get version numbers
         run: |
           echo "IMAGE_VERSION=${GITHUB_REF_NAME#v}" >> $GITHUB_ENV
-          echo "IMAGE_MAJOR=$(expr match ${GITHUB_REF_NAME} 'v\([0-9]+\)\.[0-9+]')" >> $GITHUB_ENV
+          echo "IMAGE_MAJOR=$(expr match ${GITHUB_REF_NAME} 'v\([0-9]*\)\.[0-9]*')" >> $GITHUB_ENV
 
       - name: Build and push
         uses: docker/build-push-action@v3