diff --git a/.github/workflows/docker-builder.yml b/.github/workflows/docker-builder.yml
index b913106..4c83848 100644
--- a/.github/workflows/docker-builder.yml
+++ b/.github/workflows/docker-builder.yml
@@ -33,7 +33,7 @@ jobs:
 
       - name: Lower case
         id: string
-        uses: ASzc/change-string-case-action@v3
+        uses: ASzc/change-string-case-action@v4
         with:
           string: ${{ secrets.DOCKERHUB_USERNAME }}/${{ github.event.repository.name }}