diff --git a/package.json b/package.json
index 628a622..5e08de8 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "gatsby-plugin-sitemap": "^6.9.0",
     "gatsby-remark-images": "^7.9.0",
     "gatsby-source-filesystem": "^5.9.0",
-    "prismjs": "^1.28.0",
+    "prismjs": "^1.29.0",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
     "react-helmet-async": "^1.3.0",
diff --git a/yarn.lock b/yarn.lock
index d580784..7b3331c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9946,10 +9946,10 @@ pretty-error@^2.1.2:
     lodash "^4.17.20"
     renderkid "^2.0.4"
 
-prismjs@^1.28.0:
-  version "1.28.0"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.28.0.tgz#0d8f561fa0f7cf6ebca901747828b149147044b6"
-  integrity sha512-8aaXdYvl1F7iC7Xm1spqSaY/OJBpYW3v+KJ+F17iYxvdc8sfjW194COK5wVhMZX45tGteiBQgdvD/nhxcRwylw==
+prismjs@^1.29.0:
+  version "1.29.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.29.0.tgz#f113555a8fa9b57c35e637bba27509dcf802dd12"
+  integrity sha512-Kx/1w86q/epKcmte75LNrEoT+lX8pBpavuAbvJWRXar7Hz8jrtF+e3vY751p0R8H9HdArwaCTNDDzHg/ScJK1Q==
 
 probe-image-size@^7.2.3:
   version "7.2.3"