diff --git a/Dockerfile b/Dockerfile
index 1c8e205..100daa2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.25@sha256:0adf442eae370b6087e08edc7c50b552d80ddf261576f4ebd6421006b2461f12
+# syntax=docker/dockerfile:1.26@sha256:ecfaec9ed6d810b56388c508f4121597bfbba70d41a6dfeee4d8cad5f295fc32
 # See docs/docker.md for usage, build targets, and hardened runtime examples.
 
 # Per-target builder stages using rust-cross/rust-musl-cross base images.