diff --git a/.gitea/workflows/ docker-image.deploy.yml b/.gitea/workflows/ docker-image.deploy.yml
index 8810f2f..1e2d179 100644
--- a/.gitea/workflows/ docker-image.deploy.yml	
+++ b/.gitea/workflows/ docker-image.deploy.yml	
@@ -34,16 +34,8 @@ jobs:
     - name: Authenticate to Gitea registry
       run: |
         mkdir -p ~/.docker
-        AUTH=$(echo -n "${{ secrets.REGISTRY_USERNAME }}:${{ secrets.REGISTRY_PASSWORD }}" | base64 -w 0)
-        cat > ~/.docker/config.json <<EOF
-        {
-          "auths": {
-            "git.limbosolutions.com": {
-              "auth": "$AUTH"
-            }
-          }
-        }
-        EOF
+        AUTH=$(printf "%s" "${{ secrets.REGISTRY_USERNAME }}:${{ secrets.REGISTRY_PASSWORD }}" | base64 -w 0)
+        printf '{"auths":{"git.limbosolutions.com":{"auth":"%s"}}}' "$AUTH" > ~/.docker/config.json
 
     - name: Build and push image
       run: |