diff --git a/Dockerfile b/Dockerfile
index dcec2af..bae3e1e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:10.23.2-buster@sha256:888a229db7fce49cc970281998ee8ef1c7e1f6aab2b6c6d0d09af7ea98896a08 as build
+FROM node:10.23.3-buster@sha256:317e0cbbab0ae8008b3b3e13d05491369ab5eac91460202964f0e7d6d0900491 as build
 
 # renovate: datasource=github-tags depName=gchq/CyberChef versioning=semver
 ENV CYBERCHEF_VERSION v9.21.0