diff --git a/internal/services/formatters/shell/deployments/Dockerfile b/internal/services/formatters/shell/deployments/Dockerfile
index a343d1dfb..3168d7355 100644
--- a/internal/services/formatters/shell/deployments/Dockerfile
+++ b/internal/services/formatters/shell/deployments/Dockerfile
@@ -12,6 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM alpine:3.16.0
+FROM alpine:3.21.1
 
 RUN apk add shellcheck>0.7.2