diff --git a/package.json b/package.json
index fbc7310..073edba 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "when": "^3.7.7"
   },
   "devDependencies": {
-    "ava": "^0.18.0",
+    "ava": "^0.18.1",
     "coveralls": "^2.11.15",
     "nyc": "^10.1.2",
     "posthtml-exp": "^0.9.0",