diff --git a/package.json b/package.json
index 7fc300f..a67b67b 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "main": "server.js",
   "dependencies": {
     "arangojs": "^6.2.3",
-    "async": "^2.5.0",
+    "async": "^3.0.1",
     "body-parser": "^1.18.2",
     "colors": "^1.1.2",
     "cors": "^2.8.4",
diff --git a/yarn.lock b/yarn.lock
index 2a1c46f..4e00a9d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -176,11 +176,10 @@ assertion-error@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/assertion-error/-/assertion-error-1.1.0.tgz#e60b6b0e8f301bd97e5375215bda406c85118c0b"
 
-async@^2.5.0:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.6.0.tgz#61a29abb6fcc026fea77e56d1c6ec53a795951f4"
-  dependencies:
-    lodash "^4.14.0"
+async@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/async/-/async-3.0.1.tgz#dfeb34657d1e63c94c0eee424297bf8a2c9a8182"
+  integrity sha512-ZswD8vwPtmBZzbn9xyi8XBQWXH3AvOQ43Za1KWYq7JeycrZuUYzx01KvHcVbXltjqH4y0MWrQ33008uLTqXuDw==
 
 asynckit@^0.4.0:
   version "0.4.0"
@@ -970,7 +969,7 @@ linkedlist@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/linkedlist/-/linkedlist-1.0.1.tgz#7b74189bfad6e76367fb5a10f3c36913128b782b"
 
-lodash@^4.14.0, lodash@^4.17.4, lodash@^4.2.0, lodash@^4.3.0:
+lodash@^4.17.4, lodash@^4.2.0, lodash@^4.3.0:
   version "4.17.5"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"