diff --git a/Dockerfile b/Dockerfile
index e41c634..29371e7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:16.15.0-bullseye@sha256:dd04637efe3c13087c25a3e6049b6d607652edc71d25a9d4cd73e4b0e6a7faa0 as build
+FROM node:18.0.0-bullseye@sha256:e5b7b349d517159246070bf14242027a9e220ffa8bd98a67ba1495d969c06c01 as build
 
 # renovate: datasource=github-tags depName=gchq/CyberChef versioning=semver
 ENV CYBERCHEF_VERSION v9.37.3