diff --git a/package-lock.json b/package-lock.json
index 30f9b7a..b2e139e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -58,12 +58,9 @@
             "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
         },
         "async": {
-            "version": "2.6.1",
-            "resolved": "https://registry.npmjs.org/async/-/async-2.6.1.tgz",
-            "integrity": "sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==",
-            "requires": {
-                "lodash": "^4.17.10"
-            }
+            "version": "3.2.2",
+            "resolved": "https://registry.npmjs.org/async/-/async-3.2.2.tgz",
+            "integrity": "sha512-H0E+qZaDEfx/FY4t7iLRv1W2fFI6+pyCeTw1uN20AQPiwqwM6ojPxHxdLv4z8hi2DtnW9BOckSspLucW7pIE5g=="
         },
         "asynckit": {
             "version": "0.4.0",
diff --git a/package.json b/package.json
index 3b3533d..71e03e0 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
         "lib": "lib"
     },
     "dependencies": {
-        "async": "^2.6.1",
+        "async": "^3.2.2",
         "base58-native": "^0.1.4",
         "bignum": "^0.13.0",
         "cli-color": "^1.4.0",