diff --git a/package.json b/package.json
index 32f955a..5870fb3 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
   "bugs": "https://github.com/static-dev/source-loader/issues",
   "devDependencies": {
     "ava": "^0.21.0",
-    "coveralls": "2.x",
+    "coveralls": "^3.0.0",
     "nyc": "^11.0.3",
     "standard": "^10.0.2",
     "webpack": "^3.0.0"