diff --git a/package.json b/package.json
index 90bb8b6..b70283c 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "window": "4.2.6"
   },
   "devDependencies": {
-    "ava": "^0.25.0",
+    "ava": "^1.4.0",
     "coveralls": "^3.0.0",
     "eslint-config-xo-lukechilds": "^1.0.0",
     "nyc": "^11.0.2",