diff --git a/images/base/Dockerfile b/images/base/Dockerfile
index 2921bc7..8807b15 100644
--- a/images/base/Dockerfile
+++ b/images/base/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.25.0@sha256:0adf442eae370b6087e08edc7c50b552d80ddf261576f4ebd6421006b2461f12
+# syntax=docker/dockerfile:1.26.0@sha256:ecfaec9ed6d810b56388c508f4121597bfbba70d41a6dfeee4d8cad5f295fc32
 ARG UBUNTU_VERSION=26.04
 ARG UBUNTU_DIGEST=sha256:3131b4cc82a783df6c9df078f86e01819a13594b865c2cad47bd1bca2b7063bb
 FROM ubuntu:${UBUNTU_VERSION}@${UBUNTU_DIGEST}
diff --git a/images/codex/Dockerfile b/images/codex/Dockerfile
index 2e4e855..a972077 100644
--- a/images/codex/Dockerfile
+++ b/images/codex/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.25.0@sha256:0adf442eae370b6087e08edc7c50b552d80ddf261576f4ebd6421006b2461f12
+# syntax=docker/dockerfile:1.26.0@sha256:ecfaec9ed6d810b56388c508f4121597bfbba70d41a6dfeee4d8cad5f295fc32
 ARG BASE_IMAGE=codex-remote-dev-base:local
 FROM ${BASE_IMAGE}