diff --git a/package-lock.json b/package-lock.json
index 445d8ec..0d95067 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -98,12 +98,9 @@
       "dev": true
     },
     "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",
@@ -150,6 +147,11 @@
         "tweetnacl": "^0.14.3"
       }
     },
+    "bignumber.js": {
+      "version": "8.1.1",
+      "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-8.1.1.tgz",
+      "integrity": "sha512-QD46ppGintwPGuL1KqmwhR0O+N2cZUg8JG/VzwI2e28sM9TqHjQB10lI4QAaMHVbLzwVLLAwEglpKPViWX+5NQ=="
+    },
     "bn.js": {
       "version": "4.11.8",
       "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.8.tgz",
diff --git a/package.json b/package.json
index 3723480..755f404 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
   },
   "main": "lib/index.js",
   "dependencies": {
-    "async": "^2.6.1",
+    "async": "^3.2.2",
     "@dashevo/dashcore-lib": "^0.16.8",
     "body-parser": "^1.18.3",
     "compression": "^1.7.3",