diff --git a/travis/scripts/stress/package.json b/travis/scripts/stress/package.json
index d326da9..a66f691 100644
--- a/travis/scripts/stress/package.json
+++ b/travis/scripts/stress/package.json
@@ -5,7 +5,7 @@
   },
   "license": "ISC",
   "dependencies": {
-    "async": "^2.6.1",
+    "async": "^3.2.2",
     "csv-parse": "^3.0.0",
     "ethereumjs-tx": "^1.3.7",
     "winston": "^3.1.0"
diff --git a/travis/scripts/stress/yarn.lock b/travis/scripts/stress/yarn.lock
index 01333e9..5f0ffd9 100644
--- a/travis/scripts/stress/yarn.lock
+++ b/travis/scripts/stress/yarn.lock
@@ -2,12 +2,16 @@
 # yarn lockfile v1
 
 
-async@^2.6.0, async@^2.6.1:
+async@^2.6.0:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
   dependencies:
     lodash "^4.17.10"
 
+async@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/async/-/async-3.2.2.tgz#2eb7671034bb2194d45d30e31e24ec7e7f9670cd"
+
 bindings@^1.2.1:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.3.0.tgz#b346f6ecf6a95f5a815c5839fc7cdb22502f1ed7"