diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index b9ad0b1..142f8f1 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -8,42 +8,30 @@ on:
 jobs:
   build-and-push:
     runs-on: [k8s, kaniko]
-    steps:              
-      - name: Instalar y ejecutar Kaniko (todo en uno)
+    steps:
+      - name: Instalar y ejecutar Buildah
         env:
           NEXUS_USER: ${{ secrets.NEXUS_USER }}
           NEXUS_PASSWORD: ${{ secrets.NEXUS_PASSWORD }}
         run: |
-          # 1. Instalar Kaniko
-          KANIKO_VERSION="v1.19.0"
-          echo "📦 Instalando Kaniko ${KANIKO_VERSION}..."
-          curl -sfL https://github.com/GoogleContainerTools/kaniko/releases/download/${KANIKO_VERSION}/kaniko-executor \
-            -o /tmp/kaniko-executor
-          chmod +x /tmp/kaniko-executor
-          
-          # 2. Configurar credenciales
-          echo "🔐 Configurando credenciales..."
-          mkdir -p /kaniko/.docker
-          AUTH_TOKEN=$(echo -n "$NEXUS_USER:$NEXUS_PASSWORD" | base64)
-          cat > /kaniko/.docker/config.json <<EOF
-          {
-            "auths": {
-              "nexus.server.duckdns.org": {
-                "auth": "${AUTH_TOKEN}"
-              }
-            }
-          }
-          EOF
-          
-          # 3. Construir y subir imagen
-          echo "🚀 Ejecutando Kaniko..."
-          /tmp/kaniko-executor \
-            --context=. \
-            --dockerfile=./Dockerfile \
-            --destination=nexus.rancherk3.duckdns.org/tfm/microserviciospytho:latest \
-            --destination=nexus.rancherk3.duckdns.org/tfm/microserviciospytho:${{ gitea.sha }} \
-            --cache=true \
-            --cache-ttl=72h \
-            --verbosity=info
-          
+          echo "📦 Instalando Buildah"
+          apt-get install -y buildah
+
+          echo "🔐 Configurando credenciales para el registro"
+          echo "[[registry]]" > /etc/containers/registries.conf
+          echo "prefix = \"nexus.rancherk3.duckdns.org\"" >> /etc/containers/registries.conf
+          echo "location = \"nexus.rancherk3.duckdns.org\"" >> /etc/containers/registries.conf
+          echo "insecure = true" >> /etc/containers/registries.conf
+
+          #echo "Iniciando sesión en el registro"
+          #echo $NEXUS_PASSWORD | buildah login -u $NEXUS_USER --password-stdin nexus.rancherk3.duckdns.org
+
+          echo "🚀 Construyendo imagen con Buildah"
+          buildah bud -f Dockerfile -t nexus.rancherk3.duckdns.org/tfm/microserviciospython:latest .
+          buildah tag nexus.rancherk3.duckdns.org/tfm/microserviciospython:latest nexus.rancherk3.duckdns.org/tfm/microserviciospython:${GITHUB_SHA}
+
+          echo "🚀 Subiendo imágenes"
+          buildah push nexus.rancherk3.duckdns.org/tfm/microserviciospython:latest
+          buildah push nexus.rancherk3.duckdns.org/tfm/microserviciospython:${GITHUB_SHA}
+
           echo "✅ Imagen construida y subida exitosamente"
\ No newline at end of file