diff --git a/Dockerfile b/Dockerfile
index a25467f26a..4e74ec63c5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@
 # Modifier --platform=$BUILDPLATFORM limits the platform to "BUILDPLATFORM" during buildx multi-platform builds
 # This is because npm "chromedriver" package is not compatiable with all platforms
 # For more info see: https://docs.docker.com/build/building/multi-platform/#cross-compilation
-FROM --platform=$BUILDPLATFORM node:26-alpine@sha256:e88a35be04478413b7c71c455cd9865de9b9360e1f43456be5951032d7ac1a66 AS builder
+FROM --platform=$BUILDPLATFORM node:26-alpine@sha256:2d984a15c9b54fd0aeb608b8e0d0d83529eb34d2966db27a1fb4f1edc3d298a3 AS builder
 
 WORKDIR /app
 
@@ -27,7 +27,7 @@ RUN npm run build
 #########################################
 # Package static build files into nginx #
 #########################################
-FROM nginxinc/nginx-unprivileged:stable-alpine@sha256:fd3314e343bad2de4e1127ef58be122abbfa7e09572fa46ae62fcddb6b3f21c5 AS cyberchef
+FROM nginxinc/nginx-unprivileged:stable-alpine@sha256:9b87ad3dd9f431c733f19dfb278c7eb3dba9dca381942c79818bb42f1a566a83 AS cyberchef
 
 LABEL maintainer="GCHQ <oss@gchq.gov.uk>"