diff --git a/dashboard/Dockerfile b/dashboard/Dockerfile
index 93ed34be..f5213667 100644
--- a/dashboard/Dockerfile
+++ b/dashboard/Dockerfile
@@ -9,7 +9,7 @@ ARG GID=1000
 # Replaces the Tailwind Play CDN (cdn.tailwindcss.com) with a locally-built
 # stylesheet so we can serve it with a proper SRI hash.  Node is only needed
 # at build time; the final image contains only the generated tailwind.css.
-FROM node:24-slim AS css-builder
+FROM node:26-slim AS css-builder
 
 WORKDIR /build
 
diff --git a/explore/Dockerfile b/explore/Dockerfile
index 203a3846..84a87b6c 100644
--- a/explore/Dockerfile
+++ b/explore/Dockerfile
@@ -8,7 +8,7 @@ ARG GID=1000
 # ── CSS build stage ────────────────────────────────────────────────────────────
 # Builds Tailwind CSS at build time so the final image serves a minified
 # stylesheet.  Node is only needed at build time.
-FROM node:24-slim AS css-builder
+FROM node:26-slim AS css-builder
 
 WORKDIR /build