diff --git a/package.json b/package.json
index 0b4555b..a5acbdf 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
   },
   "bugs": "https://github.com/reshape/expressions/issues",
   "devDependencies": {
-    "ava": "^0.18.1",
+    "ava": "^0.19.0",
     "coveralls": "^2.11.16",
     "nyc": "^10.1.2",
     "reshape": "^0.4.1",