diff --git a/package-lock.json b/package-lock.json
index e8c96b7..040e632 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "devp2p-vap",
-  "version": "0.0.0",
+  "version": "0.0.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -19,6 +19,11 @@
         "vaporyjs-util": "^5.1.5"
       },
       "dependencies": {
+        "async": {
+          "version": "1.5.2",
+          "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
+          "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo="
+        },
         "levelup": {
           "version": "1.3.9",
           "resolved": "https://registry.npmjs.org/levelup/-/levelup-1.3.9.tgz",
@@ -234,9 +239,12 @@
       "dev": true
     },
     "async": {
-      "version": "1.5.2",
-      "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
-      "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo="
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
+      "requires": {
+        "lodash": "^4.17.14"
+      }
     },
     "async-each": {
       "version": "1.0.3",
@@ -3564,6 +3572,12 @@
         "wordwrap": "^1.0.0"
       },
       "dependencies": {
+        "async": {
+          "version": "1.5.2",
+          "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
+          "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=",
+          "dev": true
+        },
         "escodegen": {
           "version": "1.8.1",
           "resolved": "https://registry.npmjs.org/escodegen/-/escodegen-1.8.1.tgz",
diff --git a/package.json b/package.json
index 60595b4..2517e5a 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
   },
   "homepage": "https://github.com/vaporyjs/node-devp2p-vap",
   "dependencies": {
-    "async": "^1.4.2",
+    "async": "^2.6.4",
     "vaporyjs-block": "^1.7.1",
     "vaporyjs-tx": "^1.3.3",
     "vaporyjs-util": "^5.1.5"