diff --git a/package.json b/package.json
index 148733c..0f06ed9 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
   },
   "devDependencies": {
     "ava": "^0.21.0",
-    "coveralls": "^2.13.1",
+    "coveralls": "^3.0.0",
     "nyc": "^11.0.3",
     "reshape-custom-elements": "^0.1.0",
     "reshape-expressions": "^0.1.5",