diff --git a/Dockerfile b/Dockerfile
index 29f6b83..dea19a3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM node:16.15.1-bullseye@sha256:4d3ca62d7ce7cd0ba4484359de9500ba04a12edec17693cae1a1a8eb8a52d42b as build
 
 # renovate: datasource=github-tags depName=gchq/CyberChef versioning=semver
-ENV CYBERCHEF_VERSION v9.38.9
+ENV CYBERCHEF_VERSION v9.39.1
 
 USER node