diff --git a/package.json b/package.json
index f00fb095..14d2da6d 100644
--- a/package.json
+++ b/package.json
@@ -74,6 +74,7 @@
     "immutable": "^3.8.1",
     "invert-color": "^2.0.0",
     "js-yaml": "^3.12.0",
+    "jsonlint-mod": "^1.7.4",
     "katex": "^0.9.0",
     "lodash": "^4.11.1",
     "lodash-move": "^1.1.1",