diff --git a/.gitea/workflows/build-and-push.yaml b/.gitea/workflows/build-and-push.yaml
index 2aa9efa..da3a3aa 100644
--- a/.gitea/workflows/build-and-push.yaml
+++ b/.gitea/workflows/build-and-push.yaml
@@ -16,9 +16,15 @@ jobs:
     steps:
       - name: Convert to lowercase
         id: github_repository_to_lowercase
-        uses: step-security/change-string-case-action@v6
-        with:
-          inputStr: ${{ github.repository }} # Replace with your variable
+        run: |
+          # Grab the value (you can also use `${{ github.ref }}`, `${{ secrets.MY_SECRET }}`, etc.)
+          raw_value="${{ env.MY_VAR }}"
+          # Convert to lower case
+          lower_value=$(echo "$raw_value" | tr '[:upper:]' '[:lower:]')
+          # Export it to the workflow environment
+          # echo "MY_LOWER=$lower_value" >> $GITHUB_ENV
+          # If you want to use it as an output of this step:
+          echo "lowercase=$lower_value" >> $GITHUB_OUTPUT
       # ------------------------------------------------------------------
       # 1. Checkout repository
       # ------------------------------------------------------------------
diff --git a/.gitea/workflows/ci.yaml b/.gitea/workflows/ci.yaml
index 2a5bfbb..cfe39ba 100644
--- a/.gitea/workflows/ci.yaml
+++ b/.gitea/workflows/ci.yaml
@@ -11,12 +11,18 @@ jobs:
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-     
+
       - name: Convert to lowercase
         id: github_repository_to_lowercase
-        uses: step-security/change-string-case-action@v6
-        with:
-          inputStr: ${{ github.repository }} # Replace with your variable
+        run: |
+          # Grab the value (you can also use `${{ github.ref }}`, `${{ secrets.MY_SECRET }}`, etc.)
+          raw_value="${{ env.MY_VAR }}"
+          # Convert to lower case
+          lower_value=$(echo "$raw_value" | tr '[:upper:]' '[:lower:]')
+          # Export it to the workflow environment
+          # echo "MY_LOWER=$lower_value" >> $GITHUB_ENV
+          # If you want to use it as an output of this step:
+          echo "lowercase=$lower_value" >> $GITHUB_OUTPUT
             
       - name: Build image
         id: build