diff --git a/package-lock.json b/package-lock.json
index 0a2e204..1eabc20 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1515,10 +1515,13 @@
       "dev": true
     },
     "async": {
-      "version": "0.2.10",
-      "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
-      "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E=",
-      "dev": true
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
+      "dev": true,
+      "requires": {
+        "lodash": "^4.17.14"
+      }
     },
     "async-each": {
       "version": "1.0.3",
diff --git a/package.json b/package.json
index 20ead46..34199dc 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   "devDependencies": {
     "@babel/core": "^7.14.3",
     "@babel/preset-env": "^7.14.4",
-    "async": "^0.2.9",
+    "async": "^2.6.4",
     "browserify": "13.1.1",
     "commander": "^2.2.0",
     "log4js": "^0.6.22",