diff --git a/gui/package.json b/gui/package.json
index a59f8a7e2..f3115d1ee 100644
--- a/gui/package.json
+++ b/gui/package.json
@@ -34,7 +34,7 @@
     "lodash": "4.17.15",
     "napa": "2.3.0",
     "object-hash": "1.3.0",
-    "prismjs": "1.15.0",
+    "prismjs": "1.27.0",
     "prop-types": "15.6.2",
     "react": "15.5.4",
     "react-datepicker": "0.47.0",