diff --git a/.eleventy.js b/.eleventy.js
index 440c255..fc872bb 100644
--- a/.eleventy.js
+++ b/.eleventy.js
@@ -18,6 +18,7 @@ module.exports = function (eleventyConfig) {
     breaks: true,
     html: true,
   })
+    .use(require("markdown-it-mark"))
     .use(require("markdown-it-footnote"))
     .use(function (md) {
       md.renderer.rules.hashtag_open = function (tokens, idx) {
@@ -190,15 +191,6 @@ module.exports = function (eleventyConfig) {
     );
   });
 
-  eleventyConfig.addFilter("highlight", function (str) {
-    return (
-      str &&
-      str.replace(/\=\=(.*?)\=\=/g, function (match, p1) {
-        return `<mark>${p1}</mark>`;
-      })
-    );
-  });
-
   eleventyConfig.addFilter("taggify", function (str) {
     return (
       str &&
diff --git a/package-lock.json b/package-lock.json
index fcee062..9e551dd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,6 +23,7 @@
                 "markdown-it": "^13.0.1",
                 "markdown-it-attrs": "^4.1.6",
                 "markdown-it-footnote": "^3.0.3",
+                "markdown-it-mark": "^3.0.1",
                 "markdown-it-mathjax3": "^4.3.1",
                 "markdown-it-plantuml": "^1.4.1",
                 "markdown-it-task-checkbox": "^1.0.6"
@@ -2918,6 +2919,11 @@
             "resolved": "https://registry.npmjs.org/markdown-it-footnote/-/markdown-it-footnote-3.0.3.tgz",
             "integrity": "sha512-YZMSuCGVZAjzKMn+xqIco9d1cLGxbELHZ9do/TSYVzraooV8ypsppKNmUJ0fVH5ljkCInQAtFpm8Rb3eXSrt5w=="
         },
+        "node_modules/markdown-it-mark": {
+            "version": "3.0.1",
+            "resolved": "https://registry.npmjs.org/markdown-it-mark/-/markdown-it-mark-3.0.1.tgz",
+            "integrity": "sha512-HyxjAu6BRsdt6Xcv6TKVQnkz/E70TdGXEFHRYBGLncRE9lBFwDNLVtFojKxjJWgJ+5XxUwLaHXy+2sGBbDn+4A=="
+        },
         "node_modules/markdown-it-mathjax3": {
             "version": "4.3.2",
             "resolved": "https://registry.npmjs.org/markdown-it-mathjax3/-/markdown-it-mathjax3-4.3.2.tgz",
@@ -7566,6 +7572,11 @@
             "resolved": "https://registry.npmjs.org/markdown-it-footnote/-/markdown-it-footnote-3.0.3.tgz",
             "integrity": "sha512-YZMSuCGVZAjzKMn+xqIco9d1cLGxbELHZ9do/TSYVzraooV8ypsppKNmUJ0fVH5ljkCInQAtFpm8Rb3eXSrt5w=="
         },
+        "markdown-it-mark": {
+            "version": "3.0.1",
+            "resolved": "https://registry.npmjs.org/markdown-it-mark/-/markdown-it-mark-3.0.1.tgz",
+            "integrity": "sha512-HyxjAu6BRsdt6Xcv6TKVQnkz/E70TdGXEFHRYBGLncRE9lBFwDNLVtFojKxjJWgJ+5XxUwLaHXy+2sGBbDn+4A=="
+        },
         "markdown-it-mathjax3": {
             "version": "4.3.2",
             "resolved": "https://registry.npmjs.org/markdown-it-mathjax3/-/markdown-it-mathjax3-4.3.2.tgz",
diff --git a/package.json b/package.json
index 5a9c89f..f54409d 100644
--- a/package.json
+++ b/package.json
@@ -38,6 +38,7 @@
         "markdown-it": "^13.0.1",
         "markdown-it-attrs": "^4.1.6",
         "markdown-it-footnote": "^3.0.3",
+        "markdown-it-mark": "^3.0.1",
         "markdown-it-mathjax3": "^4.3.1",
         "markdown-it-plantuml": "^1.4.1",
         "markdown-it-task-checkbox": "^1.0.6"
diff --git a/src/site/_includes/layouts/note.njk b/src/site/_includes/layouts/note.njk
index 7e06a59..a69c075 100644
--- a/src/site/_includes/layouts/note.njk
+++ b/src/site/_includes/layouts/note.njk
@@ -57,7 +57,7 @@ permalink: "notes/{{ page.fileSlug | slugify }}/"
       {% for imp in dynamics.notes.beforeContent %}
         {% include imp %}
       {% endfor %}
-      {{ content | hideDataview | link | taggify | highlight | safe}}
+      {{ content | hideDataview | link | taggify | safe}}
       {% for imp in dynamics.common.afterContent %}
         {% include imp %}
       {% endfor %}
diff --git a/src/site/index.njk b/src/site/index.njk
index 4ea54e3..b8442be 100644
--- a/src/site/index.njk
+++ b/src/site/index.njk
@@ -53,7 +53,7 @@
         {% include imp %}
       {% endfor %}
       {%- for garden in collections.gardenEntry -%}
-        {{garden.templateContent | hideDataview | link | taggify | highlight | safe }}
+        {{garden.templateContent | hideDataview | link | taggify | safe }}
       {%- endfor -%}
       {% for imp in dynamics.common.afterContent %}
         {% include imp %}