diff --git a/package.json b/package.json
index eba64ce..aedc524 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
   },
   "homepage": "https://github.com/telemark/azure-function-convert-pdf#readme",
   "devDependencies": {
-    "ava": "1.2.0",
+    "ava": "3.9.0",
     "coveralls": "3.0.2",
     "husky": "1.3.1",
     "nyc": "13.1.0",