diff --git a/Dockerfile b/Dockerfile
index cbf5f0f..9685160 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.19.0@sha256:b6afd42430b15f2d2a4c5a02b919e98a525b785b1aaff16747d2f623364e39b6
+# syntax=docker/dockerfile:1.22.0@sha256:4a43a54dd1fedceb30ba47e76cfcf2b47304f4161c0caeac2db1c61804ea3c91
 
 # renovate: datasource=deb depName=build-essential
 ARG BUILD_ESSENTIAL_VERSION=12.12