diff --git a/package-lock.json b/package-lock.json
index a322bd877f..c7559e5273 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21838,9 +21838,9 @@
       }
     },
     "prismjs": {
-      "version": "1.19.0",
-      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.19.0.tgz",
-      "integrity": "sha512-IVFtbW9mCWm9eOIaEkNyo2Vl4NnEifis2GQ7/MLRG5TQe6t+4Sj9J5QWI9i3v+SS43uZBlCAOn+zYTVYQcPXJw==",
+      "version": "1.20.0",
+      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.20.0.tgz",
+      "integrity": "sha512-AEDjSrVNkynnw6A+B1DsFkd6AVdTnp+/WoUixFRULlCLZVRZlVQMVWio/16jv7G1FscUxQxOQhWwApgbnxr6kQ==",
       "requires": {
         "clipboard": "^2.0.0"
       }
diff --git a/package.json b/package.json
index 89493801c8..e81464a9fc 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "gatsby-source-filesystem": "^2.2.2",
     "gatsby-transformer-remark": "^2.7.1",
     "intersection-observer": "^0.9.0",
-    "prismjs": "^1.19.0",
+    "prismjs": "^1.20.0",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
     "react-emotion": "^10.0.0",