diff --git a/Dockerfile b/Dockerfile
index 4d6287912e..d80a4e1555 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.11
+# syntax=docker/dockerfile:1.12
 
 # This file is designed for production server deployment, not local development work
 # For a containerized local dev environment, see: https://github.com/mastodon/mastodon/blob/main/README.md#docker
diff --git a/streaming/Dockerfile b/streaming/Dockerfile
index 52c4a1a3d0..f56c1a42b8 100644
--- a/streaming/Dockerfile
+++ b/streaming/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.11
+# syntax=docker/dockerfile:1.12
 
 # Please see https://docs.docker.com/engine/reference/builder for information about
 # the extended buildx capabilities used in this file.