diff --git a/package.json b/package.json
index dc9fd39..2ecfd32 100644
--- a/package.json
+++ b/package.json
@@ -75,7 +75,7 @@
     "netlify-cms-app": "^2.10.1",
     "node-sass": "^4.13.0",
     "normalize-scss": "^7.0.1",
-    "prismjs": "^1.17.1",
+    "prismjs": "^1.18.0",
     "react": "^16.12.0",
     "react-disqus-comments": "^1.4.0",
     "react-dom": "^16.12.0",
diff --git a/yarn.lock b/yarn.lock
index 3d00941..3765b57 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -12566,9 +12566,10 @@ pretty-format@^24.9.0:
     ansi-styles "^3.2.0"
     react-is "^16.8.4"
 
-prismjs@^1.17.1:
-  version "1.17.1"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.17.1.tgz#e669fcbd4cdd873c35102881c33b14d0d68519be"
+prismjs@^1.18.0:
+  version "1.18.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.18.0.tgz#8f04dd47fa232cbd27d1ca969107580ff43f06e4"
+  integrity sha512-N0r3i/Cto516V8+GKKamhsPVZSFcO0TMUBtIDW6uq6BVqoC3FNtZVZ+cmH16N2XtGQlgRN+sFUTjOdCsEP51qw==
   optionalDependencies:
     clipboard "^2.0.0"