diff --git a/ui/Dockerfile b/ui/Dockerfile
index 8cdf0dd230..2e0bd539cb 100644
--- a/ui/Dockerfile
+++ b/ui/Dockerfile
@@ -1,13 +1,11 @@
-# elm-format only works with buster variants of the NodeJS container image.
-# See https://github.com/avh4/elm-format/issues/709 for more details.
-FROM node:14-buster
+FROM node:22-bookworm
 
 ENV NPM_CONFIG_PREFIX=/home/node/.npm-global
 ENV PATH=$PATH:/home/node/.npm-global/bin
 
 RUN mkdir -p $NPM_CONFIG_PREFIX; yarn global add \
   elm@0.19.1 \
-  elm-format@0.8.5 \
+  elm-format@0.8.7 \
   elm-test@0.19.1-revision6 \
   uglify-js@3.13.4 \
   elm-review@2.5.0