diff --git a/package.json b/package.json
index c228211..7a6a99b 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "jquery": "~2.2.3",
     "katex": "0.6.0",
     "littlefoot": "1.0.0",
-    "npm": "^5.7.1",
+    "npm": "^6.14.6",
     "paper": "^0.9.25",
     "webppl": "github:probmods/webppl",
     "webppl-agents": "github:agentmodels/webppl-agents",