diff --git a/package.json b/package.json
index 190d1f8..21fe92d 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
   },
   "devDependencies": {
     "coveralls": "^2.11.9",
-    "d3": "^4.7.3",
+    "d3": "^5.8.0",
     "gzip-size": "^3.0.0",
     "jsdom": "^9.12.0",
     "nyc": "^10.1.2",