diff --git a/.gitea/workflows/build.yaml b/.gitea/workflows/build.yaml
index 1b309b5..c960e2d 100644
--- a/.gitea/workflows/build.yaml
+++ b/.gitea/workflows/build.yaml
@@ -26,13 +26,13 @@ jobs:
           docker info                              
       - name: Build Dockerfile
         run: |
-          package_name=$(basename ${{ github.repository | lower }})
-          branch_name=$(git rev-parse --abbrev-ref HEAD | lower)
+          package_name=$(basename ${{ github.repository | tr '[:upper:]' '[:lower:]' }})
+          branch_name=$(git rev-parse --abbrev-ref HEAD | tr '[:upper:]' '[:lower:]')
           docker build -t $package_name .                  
       - name: Upload Docker image to soaska.ru
         run: |
-          package_name=$(basename ${{ github.repository | lower }})
-          branch_name=$(git rev-parse --abbrev-ref HEAD | lower)
+          package_name=$(basename ${{ github.repository | tr '[:upper:]' '[:lower:]' }})
+          branch_name=$(git rev-parse --abbrev-ref HEAD | tr '[:upper:]' '[:lower:]')
 
           docker login -u ${{ secrets.username }} -p ${{ secrets.password }} soaska.ru
           docker tag $package_name:latest soaska.ru/${{ secrets.username }}/$package_name:$branch_name