diff --git a/less/components/post.less b/less/components/post.less
index 549f0180..33630ced 100644
--- a/less/components/post.less
+++ b/less/components/post.less
@@ -7,6 +7,28 @@ pre {
 
 pre[class*="language-"] { .bn; .br0 }
 
+pre code,
+p code {
+    font-size: .8125rem;
+}
+
+pre code,
+pre code.hljs,
+.hljs {
+    .db;
+    .pa3;
+    .bl;
+    .bw2;
+    .b--black-40;
+    .mv2;
+    background: #eee;
+}
+
+p code {
+    background: #eee;
+    padding: 1px 3px;
+}
+
 pre code {
     .pre;
     word-break: normal;
diff --git a/less/main.less b/less/main.less
index ca265292..5405e3c2 100644
--- a/less/main.less
+++ b/less/main.less
@@ -1,5 +1,5 @@
 @import (less) "~font-awesome/css/font-awesome.css";
-// @import (less) "~prismjs/themes/prism-twilight.css";
+@import (less) "~highlightjs/styles/github-gist.css";
 
 @import "~tachyons-less/less/_colors";
 
@@ -13,26 +13,6 @@ td {
     a { color: @blue }
 }
 
-pre code,
-p code {
-    font-size: .8125rem;
-}
-
-pre code {
-    .db;
-    .bg-black-10;
-    .pa3;
-    .bl;
-    .bw2;
-    .b--black-40;
-    .mv2;
-}
-
-p code {
-    .bg-black-10;
-    padding: 1px 3px;
-}
-
 .button {
     .bg-blue;
     .bn;
diff --git a/package.json b/package.json
index 8fd37d77..b557efbc 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "autoprefixer": "postcss -u autoprefixer -r $npm_package_config_outputCss/*.css",
     "build": "npm run init && npm-run-all -p build:css build:js copy:fonts",
     "build:css": "npm run less -- && npm run autoprefixer",
-    "build:js": "concat -o $npm_package_config_outputJs/site.js ./node_modules/jquery/dist/jquery.js $npm_package_config_jsPath/vendor/*.js $npm_package_config_jsPath/main.js",
+    "build:js": "concat -o $npm_package_config_outputJs/site.js ./node_modules/jquery/dist/jquery.js ./node_modules/highlightjs/highlight.pack.js $npm_package_config_jsPath/vendor/*.js $npm_package_config_jsPath/main.js",
     "copy:fonts": "cp -R ./node_modules/font-awesome/fonts/* $npm_package_config_outputFonts",
     "dev": "npm run build && npm-run-all -p watch:css watch:js",
     "init": "mkdir -p $npm_package_config_outputCss $npm_package_config_outputFonts $npm_package_config_outputJs",
@@ -25,6 +25,7 @@
     "concat": "^1.0.3",
     "font-awesome": "^4.7.0",
     "graceful-fs": "^4.1.11",
+    "highlightjs": "^9.10.0",
     "jquery.2": "^1.0.0",
     "less": "2.7.1",
     "less-plugin-clean-css": "^1.5.1",
@@ -32,7 +33,6 @@
     "npm-run-all": "^4.1.1",
     "onchange": "^3.2.1",
     "postcss-cli": "^4.1.1",
-    "prismjs": "^1.6.0",
     "tachyons-less": "^1.0.4"
   }
 }
diff --git a/source/_layouts/post.html.twig b/source/_layouts/post.html.twig
index 4f5dd97d..39730b37 100644
--- a/source/_layouts/post.html.twig
+++ b/source/_layouts/post.html.twig
@@ -10,3 +10,7 @@
     {% include 'post/pager' %}
     {% include 'post/about-author' %}
 {% endblock %}
+
+{% block scripts %}
+<script>hljs.initHighlightingOnLoad();</script>
+{% endblock %}
diff --git a/yarn.lock b/yarn.lock
index d6e9ef86..61f0ae7a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -298,14 +298,6 @@ cli-spinners@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/cli-spinners/-/cli-spinners-1.1.0.tgz#f1847b168844d917a671eb9d147e3df497c90d06"
 
-clipboard@^1.5.5:
-  version "1.7.1"
-  resolved "https://registry.yarnpkg.com/clipboard/-/clipboard-1.7.1.tgz#360d6d6946e99a7a1fef395e42ba92b5e9b5a16b"
-  dependencies:
-    good-listener "^1.2.2"
-    select "^1.1.2"
-    tiny-emitter "^2.0.0"
-
 cliui@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
@@ -432,10 +424,6 @@ delayed-stream@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
 
-delegate@^3.1.2:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/delegate/-/delegate-3.1.3.tgz#9a8251a777d7025faa55737bc3b071742127a9fd"
-
 delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
@@ -725,12 +713,6 @@ globby@^6.1.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
-good-listener@^1.2.2:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/good-listener/-/good-listener-1.2.2.tgz#d53b30cdf9313dffb7dc9a0d477096aa6d145c50"
-  dependencies:
-    delegate "^3.1.2"
-
 graceful-fs, graceful-fs@^4.1.6:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
@@ -783,6 +765,10 @@ hawk@~3.1.3, hawk@3.1.3:
     hoek "2.x.x"
     sntp "1.x.x"
 
+highlightjs:
+  version "9.10.0"
+  resolved "https://registry.yarnpkg.com/highlightjs/-/highlightjs-9.10.0.tgz#fca9b78ddaa3b1abca89d6c3ee105ad270a80190"
+
 hoek@2.x.x:
   version "2.16.3"
   resolved "https://registry.yarnpkg.com/hoek/-/hoek-2.16.3.tgz#20bb7403d3cea398e91dc4710a8ff1b8274a25ed"
@@ -1459,12 +1445,6 @@ pretty-hrtime@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/pretty-hrtime/-/pretty-hrtime-1.0.3.tgz#b7e3ea42435a4c9b2759d99e0f201eb195802ee1"
 
-prismjs@^1.6.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.6.0.tgz#118d95fb7a66dba2272e343b345f5236659db365"
-  optionalDependencies:
-    clipboard "^1.5.5"
-
 process-nextick-args@~1.0.6:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
@@ -1663,10 +1643,6 @@ safe-buffer@^5.0.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
 
-select@^1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/select/-/select-1.1.2.tgz#0e7350acdec80b1108528786ec1d4418d11b396d"
-
 semver@^5.3.0:
   version "5.4.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.4.1.tgz#e059c09d8571f0540823733433505d3a2f00b18e"
@@ -1881,10 +1857,6 @@ through@~2.3, through@~2.3.1, through@2:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
-tiny-emitter@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/tiny-emitter/-/tiny-emitter-2.0.0.tgz#bad327adb1804b42a231afa741532bd884cd09ad"
-
 tough-cookie@~2.3.0:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.1.tgz#99c77dfbb7d804249e8a299d4cb0fd81fef083fd"