diff --git a/package-lock.json b/package-lock.json
index 614d417..19681fd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "CC-BY-NC-SA-4.0",
       "devDependencies": {
         "pandoc-filter": "^0.1.8",
-        "prismjs": "^1.29.0"
+        "prismjs": "^1.30.0"
       }
     },
     "node_modules/get-stdin": {
@@ -35,10 +35,11 @@
       }
     },
     "node_modules/prismjs": {
-      "version": "1.29.0",
-      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.29.0.tgz",
-      "integrity": "sha512-Kx/1w86q/epKcmte75LNrEoT+lX8pBpavuAbvJWRXar7Hz8jrtF+e3vY751p0R8H9HdArwaCTNDDzHg/ScJK1Q==",
+      "version": "1.30.0",
+      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.30.0.tgz",
+      "integrity": "sha512-DEvV2ZF2r2/63V+tK8hQvrR2ZGn10srHbXviTlcv7Kpzw8jWiNTqbVgjO3IY8RxrrOUF8VPMQQFysYYYv0YZxw==",
       "dev": true,
+      "license": "MIT",
       "engines": {
         "node": ">=6"
       }
diff --git a/package.json b/package.json
index a40c88a..34af2d3 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "This repository contains the source code for the **INFO 340: Client-Side Web Development** course book. The published book can be viewed at **https://info340.github.io/**.",
   "devDependencies": {
     "pandoc-filter": "^0.1.8",
-    "prismjs": "^1.29.0"
+    "prismjs": "^1.30.0"
   },
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"