diff --git a/showcase/package.json b/showcase/package.json
index 3f62e0fdfa..94cb7e3394 100644
--- a/showcase/package.json
+++ b/showcase/package.json
@@ -44,7 +44,7 @@
     "package-json-merge": "0.0.1",
     "patch-package": "6.2.2",
     "prettify": "0.1.7",
-    "prismjs": "1.20.0",
+    "prismjs": "1.30.0",
     "style-loader": "1.1.3",
     "vue": "2.6.11",
     "vue-dialog-drag": "0.1.29",