diff --git a/.eleventy.js b/.eleventy.js
index 16841f2..6a939c3 100644
--- a/.eleventy.js
+++ b/.eleventy.js
@@ -7,14 +7,15 @@ const markdownIt = require("markdown-it");
 const markdownItAnchor = require("markdown-it-anchor");
 
 module.exports = function(eleventyConfig) {
+  // Copy the `img` and `css` folders to the output
+  eleventyConfig.addPassthroughCopy("img");
+  eleventyConfig.addPassthroughCopy("css");
+
   // Add plugins
   eleventyConfig.addPlugin(pluginRss);
   eleventyConfig.addPlugin(pluginSyntaxHighlight);
   eleventyConfig.addPlugin(pluginNavigation);
 
-  // https://www.11ty.dev/docs/data-deep-merge/
-  eleventyConfig.setDataDeepMerge(true);
-
   // Alias `layout: post` to `layout: layouts/post.njk`
   eleventyConfig.addLayoutAlias("post", "layouts/post.njk");
 
@@ -60,10 +61,6 @@ module.exports = function(eleventyConfig) {
     return filterTagList([...tagSet]);
   });
 
-  // Copy the `img` and `css` folders to the output
-  eleventyConfig.addPassthroughCopy("img");
-  eleventyConfig.addPassthroughCopy("css");
-
   // Customize Markdown library and settings:
   let markdownLibrary = markdownIt({
     html: true,
@@ -108,6 +105,12 @@ module.exports = function(eleventyConfig) {
       "liquid"
     ],
 
+    // Pre-process *.md files with: (default: `liquid`)
+    markdownTemplateEngine: "njk",
+
+    // Pre-process *.html files with: (default: `liquid`)
+    htmlTemplateEngine: "njk",
+
     // -----------------------------------------------------------------
     // If your site deploys to a subdirectory, change `pathPrefix`.
     // Don’t worry about leading and trailing slashes, we normalize these.
@@ -122,15 +125,6 @@ module.exports = function(eleventyConfig) {
     pathPrefix: "/",
     // -----------------------------------------------------------------
 
-    // Pre-process *.md files with: (default: `liquid`)
-    markdownTemplateEngine: "njk",
-
-    // Pre-process *.html files with: (default: `liquid`)
-    htmlTemplateEngine: "njk",
-
-    // Opt-out of pre-processing global data JSON files: (default: `liquid`)
-    dataTemplateEngine: false,
-
     // These are all optional (defaults are shown):
     dir: {
       input: ".",
diff --git a/package.json b/package.json
index 9b1d216..73c23ae 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eleventy-base-blog",
-  "version": "5.0.2",
+  "version": "6.0.0",
   "description": "A starter repository for a blog web site using the Eleventy static site generator.",
   "scripts": {
     "build": "eleventy",
@@ -24,12 +24,12 @@
   },
   "homepage": "https://github.com/11ty/eleventy-base-blog#readme",
   "devDependencies": {
-    "@11ty/eleventy": "^0.12.1",
+    "@11ty/eleventy": "^1.0.0",
     "@11ty/eleventy-navigation": "^0.3.2",
-    "@11ty/eleventy-plugin-rss": "^1.1.1",
-    "@11ty/eleventy-plugin-syntaxhighlight": "^3.1.2",
-    "luxon": "^1.26.0",
-    "markdown-it": "^12.1.0",
-    "markdown-it-anchor": "^8.1.2"
+    "@11ty/eleventy-plugin-rss": "^1.1.2",
+    "@11ty/eleventy-plugin-syntaxhighlight": "^3.1.3",
+    "luxon": "^2.3.0",
+    "markdown-it": "^12.3.2",
+    "markdown-it-anchor": "^8.4.1"
   }
 }